ULTIMATE suspension upgrade guide for 7th and 8th gen corollas!

ULTIMATE suspension upgrade guide for 7th and 8th gen corollas!

Disclaimer: As many of you know I'm quite the suspension whore Personally I'm more interested in hitting 1 lateral G on street tires than running a 10sec quarter mile and throughout the years I've research and done all upgrade accordingly. To give myself a bit more credibility (but not to brag), I will just state that I am currently a mechanical engineering student with aspirations of working in the aftermarket suspension engineering or race car engineering field in the future. With that, here are the information I have gathered over the years.. much of what I say could be considered my opinion especially parts labeled "My Impressions" so feel free to disagree with me and convince me why i am wrong. I intended this writeup to serve as quick reference as well as an in depth discussion on everything suspension related on our cars and tried my best to make it user friendly. I apologise for any spelling or grammar errors on my part, English is not my first language.

The product here is listed in no particular order and I only will list reputable brands! No cheap noname ebay crap here. Please help me add to the list if you see anything not listed.

MSRP is obtained from the manufacturer's website unless otherwise specified.. Most online stores will sell products at up to 20% off MSRP. so SHOP AROUND!

Just in case you're wondering, yes I am bored.

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Preface
As many of you should know by now the 6th 7th and 8th gen (88-02) Corollas share pretty much the exact same components in the 4 wheel McPherson suspension design. The McPherson suspension design primarily consists of a spring coiled around a strut and mounted to the chassis via an upper top hat mount and lower control arm(s). While this suspension design provides great advantages such as a compact design which maximize engine bay and trunk space, and a longer suspension stroke (great for rallying [The GC/GD WRX shares a very similar design]) it becomes a liability for performance on the tarmac. Since the McPherson strut suspension eliminates the upper control arm, positive camber changes during cornering (which is bad) is common and the shorter suspension stroke preferred by road racers is not present. (Which is why Civics/Integras have an advantage over us on the track.)

Introduction
I will start off by discussing spring and shock rates. Spring rates are measured in kg/mm or lbs/in - the mass/weight required to compress the spring by 1mm or 1inch (ie. A 10kg/mm spring = it will take 10kg of mass to compress this particular spring by 1mm) (multiply or divide by 56 to convert from one unit to another). Obviously the higher the spring rate, the stiffer the spring. Shock rate or shock valving is a much more difficult equation but the gist of it is; you should have a shock valving that best match up to the spring rate… which brings us into dampening.

This is just a rudimentary discussion on the topic of suspension dampening; there are 3 cases, under damped, over damped, and critically damped. Under damped occurs when a spring is too stiff for the strut, this normally occurs when one upgrade springs while not upgrading the stock strut or if one choose a spring with a rate too high for the strut. This scenario will result in a bouncy ride and a high chance of bottoming out your suspension. The spring essentially pushes and pulls the strut piston at a rate that the strut is not set/valved for and this is in fact why your struts would wear prematurely or blow if you upgrade springs without upgrading struts (not as much because you are lowered). Over damped is the exact opposite, when your struts are valved too stiff for your springs. This scenario would result in a harsh ride because the chassis is absorbing much of the energy (instead of the strut) when you hit a bump. Critically damped is the best case scenario, it is when a shock is perfectly matched for the spring rate. This will be the case when you buy a full coilover/dampener kit (the springs and struts are engineered by the same company to work together), or if you are able to put together the perfect spring/strut combo. Once again this is a extremely rudimentary discussion, dampening or dissipation of energy relies on many variables such as speed and frequency.. If you want to learn more, be a mechanical engineer! It is discussed in differential equations, physics mechanics, and engineering dynamics..

Struts:

Koni Sport Inserts
Part Numbers: F: 8610 1365Sport R: 86 2524Sport
Features: Adjustable Rebound Dampening
MSRP: ~$350 a pair
http://www.koni-na.com
Notes: These inserts requires more effort for installation. Dampener rebuild/revalve is available in the US.
My Impressions: I have never seen them on a corolla before but Koni has a long track record on and off roads and is a very reputable company. Probably the best strut you can buy for the rolla. Inserts installation DIY:
http://forums.nasioc.com/forums/showthread.php?t=1219607

Tokico HP
Part Numbers: FL: HB3124 RL: HB2169 FR: HB3125 RR: HB2170
Features: Blue housing, designed for lowering springs.
MSRP: ~$390 (from shox.com)
www.tokicogasshocks.com
Notes: One of the few struts actually designed for lowering springs.
My Impressions: Some say they blow prematurely but of all the time I spent here only 2 people had problems with them and they both were covered under Tokico's lifetime warranty.

KYB GR-2
Part Numbers:
Features: OEM Performance strut
MSRP: ~$320 (from shox.com)
http://www.kybshocks.com
Notes: These are designed to be OEM replacement shocks and are used as such by many suspension shops. However people here have had sucess using them with lowering springs.
My Impressions:

Bilstein Touring Class
Part Numbers:
Features: high end OEM replacement strut
MSRP: ~170/ea
http://www.bilstein.com
Notes: http://trdforums.com/forum/showthread.php?t=32306
My Impressions: The blisten rep said himself that these shouldn't be used with lowering springs.. i'm not too sure about them.

DropZone Racing
Part Numbers:
Features: 30mm gas shock
MSRP: ~$249 (from MAD Racing Concepts on ebay)
http://www.dynamicautodesign.com/
Notes: designed for lowered cars
My Impressions: Cheap noname company

TRD Japan (non adjustable)
Part Numbers: FL: 48520-AE100 RL: 48540-AE000 FR: 48510-AE100 RR: 48530-AE000
Features: non adjustable, designed for lowering springs.
MSRP:
http://www.trdparts.jp/english
Notes: Special Order from TRD Japan
My Impressions:

TRD Japan (adjustable)
Part Numbers: F: 48511-AE982 (2pcs), RL: 48540-AE081 RR: 48530-AE081
Features: F 4way adjustable inserts, R 8way adjustable strut, designed for lowering springs.
MSRP:
http://www.trdparts.jp/english
Notes: Special order from TRD Japan
My Impressions: Weird how the fronts are inserts while rears are full struts

GAB
Part Numbers: discontinued
Features: F: 4way adjustable inserts, R:8 way adjustable struts
MSRP: F:325/pr, R:220 ea (from toysport.com)
http://www.gab.jp
http://www.toytport.com
Notes:
My Impressions:

TRD USA
Part Numbers: Discontinued
Features:
MSRP:
http://www.trdusa.com
Notes: Rumored to be rebadged KYB GR-2
My Impressions:


Lowering Spring:
Lowering springs are a mostly cosmetic upgrade. Most lowering springs offers a progressive spring rate meaning the spring starts out relatively soft but becomes increasingly stiffer the more it compresses.. which is a design for comfort. Some however offers a traditional linear spring rate which retains the exact same spring rate no matter how much or little it is compressed. A linear design is more performance orientated because it is more predictable seeing as the stiffness does not change.

Tein S-Tech
Part Numbers: SKL02-AUB00
Features: Linear spring rates: F 3.2kg/mm R 2.5kg/mm, Lowers F -1.9" R -1.4"
MSRP: $310
http://www.tein.com/
Notes:
My Impressions:

Tein H-Tech
Part Numbers: SKL02-BUB00
Features: Linear spring rates: F 2.7kg/mm R 2.3kg/mm, Lowers F -1.3" R -0.8"
MSRP: $310
http://www.tein.com/
Notes:
My Impressions:

H&R Sport
Part Numbers: 93-97:54688 98-0254691
Features: Front and Rear Drop: 1.25" | 1.25" (93-97) 1.3" | 1.25" (98-02)
MSRP: $299
http://www.hrsprings.com/
Notes:
My Impressions: Progressive spring rates?

B&G S2
Part Numbers: 93-97: 92.1.023 98-02: 92.1.046
Features: Front and Rear Drop: 1.6" | 1.6"
MSRP: $269
http://www.b-gsuspension.com/
Notes:
My Impressions: Progressive spring rates?

Suspension Techniques
Part Numbers: 60370
Features: Front and Rear Drop: 1.4" | 1.4"
MSRP: ~$200 (from shox.com)
http://www.stracing.com
Notes:
My Impressions: Progressive spring rates?

Intrax
Part Numbers: 93-97: 75.1.022 98-02: 75.1.025
Features: Front and Rear Drop: 1.7" | 1.6" (93-97) 1.8" | 1.7" (98-02)
MSRP: $289
http://www.intraxsuspension.com/
Notes:
My Impressions: Progressive spring rates?

Vogtland Sport Springs
Part Numbers: 93-97: 959055
Features: Front and Rear Drop: 1.4" | 1.4" (93-97)
MSRP: $204.99
http://www.vogtland-na.com
Notes:
My Impressions: Progressive spring rates?

Sprint Springs
Part Numbers: 93-97: 8001 98-02: 8025
Features: Front and Rear Drop: 2" | 2" (93-97) 1.8"|1.7" (98-02)
MSRP: $229.50
http://www.sprintspring.com/
Notes:
My Impressions: Progressive spring rates?

Apex Springs
Part Numbers: 93-97: 170-2000 98-02: 170-2020
Features: Front and Rear Drop: 1.2" | 1.2" (93-97) 1.35"|1.35" (98-02)
MSRP:
http://www.apexsuspension.com
Notes:
My Impressions: Progressive spring rates?

Skunk 2
Part Numbers: 519-08-2000
Features: Drop:1.50 - 1.25"
MSRP: $200
http://www.skunk2.com
Notes:
My Impressions: Progressive spring rates? I find it intresting that skunk2 doesn't use their own suspension products on their own race cars..

DropZone Racing
Part Numbers:
Features: Drop: F 2.0" | R 2.0"
MSRP: ~$79 (from MAD Racing Concepts on ebay)
http://www.dynamicautodesign.com/
Notes:
My Impressions: Progressive spring rates? Cheap noname company

TRD Japan
Part Numbers: 48130-AE100
Features: Linear spring rate 3.2kg/mm F | 3.0kg/mm R, Drop 0.8"
MSRP:
http://www.trdparts.jp/english
Notes: special order from TRD Japan
My Impressions: I used to have these w/ tokicos, stiff but not too stiff, doesn't lower too much.

RS*R Suspension Coil
Part Numbers: T026D
Features: Drop 0.9" F | 0.9" R, Spring Rates 2.9kg/mm F | 2.9kg/mm R
MSRP:
http://www.rs-r.co.jp/
www.rs-r.com
Notes: Special order from japan
My Impressions:

RS*R Ti2000
Part Numbers: T026TD
Features: Drop 0.9" F | 0.9" R, Spring Rates 2.9kg/mm F | 2.9kg/mm R
MSRP:
http://www.rs-r.co.jp/
Notes: Special order from japan
My Impressions:

Espelir Active Super Down
Part Numbers: EST-589 (93-97) | EST-588 (96-02)
Features: Drop 1.15" F | 0.95" R, Spring Rate 2.8F, 3.0R
MSRP:
http://www.espelir.co.jp
http://www.mackinindustries.com
Notes: special order from japan
My Impressions:

Whiteline Control
Part Numbers: 70389 (front), 70416 (rear) (93-97) | 83107 (front) , 83108 (rear) (98-02)
Features: ???
MSRP: 162.71
http://www.whiteline.com.au/
http://www.globalperformanceparts.com
Notes:
My Impressions: Sold in pairs? WTF?

Eibach ProKit
Part Numbers: 93-97: 8208.140, 98-02: 8257.140
Features: Drop: Ft 1" | Rr 1" (93-97), Ft 1.3" | Rr 1.3"
MSRP: $215 (from racingsolutions.com)
http://www.eibach.com
Notes: May be discontinued
My Impressions: Progressive spring rates?

Eibach Sportsline
Part Numbers: 4.0882
Features: Drop: 1.5"
MSRP: $190 (from racingsolutions.com)
http://www.eibach.com
Notes: May be discontinued
My Impressions: Progressive spring rates?

TRD USA
Part Numbers: 00602-48130-COR (set of 4), 00602-48131-CF (front), 00602-48131-CR (rear)
Features:
MSRP:
http://www.TRDusa.com
Notes: discontinued
My Impressions: Progressive spring rates? Thanks to Mayur for the info

Coilover Sleeve:
Coilover sleeves allows the option of raising and lowering the ride height or preload the spring itself via a threaded sleeve/spring perch.

Ground Control
Part Numbers: SKU #8040
Features: Eibach ERS race spring allows the selection of multiple spring rates in increments of 25lbs/inch. Being a adjustable coilover you are able to lower your car from 0 to 2.5”
MSRP: $399
www.ground-control.com
Notes: You should be able to specify your spring rates at no extra cost prior to purchase, otherwise they will ship them with the standard 300lbs/in spring rates.
My Impressions: Take advantage of the fact that you can select your own spring rates!!! These coilovers are good for either street or race and that is dependant on the spring rate. It is recommended that you use koni inserts but if you choose a lower spring rate you can use Tokico, KYB, or others with great success.

Skunk 2
Part Numbers: 517-08-1850
Features: Dual locking pearch, up to 3" drop
MSRP: $259 (@kurumamotoring.com)
http://www.skunk2.com
Notes:
My Impressions: Unknown spring rates, once again I find it intresting that skunk 2 doesn't use thei own suspension products on their racecars.

OBX Gravitation
Part Numbers: ???
Features: Dual locking pearch, 0 to 2.5" drop
MSRP: $125 (@tuningdepot)
http://www.obxracingsports.com
Notes:
My Impressions: Unknown spring rates, dunno about OBX.. its usually hit or miss, mostly miss.

DropZone Racing
Part Numbers:
Features: Drop: 0-4"
MSRP: ~$89 (from MAD Racing Concepts on ebay)
http://www.dynamicautodesign.com/
Notes:
My Impressions: Unknown spring rates, Another cheap noname company


Full Coilovers:
Full coilovers are great because the manufacturer match the spring to the shock at the factory so there is no guess work involved. Most features a one way height/preload adjustment which is a spring perch threaded onto the shock body used to raise and lower the ride height. The higher-up grades of coilovers features a separate (2way) height and preload adjustment which allows one to adjust the height by moving the entire shock body up and down relative to the hub as opposed to moving the spring. This means the shock travel is not affected by height adjustment and you retain a full shock stroke no matter what height you are set at. Additionally the separate spring perch allow one to preload (pre-compressing or decompressing) the spring. Most features an adjustable shock dampener so one may dial in the shock valving from soft to firm to suit one needs. There are two types of shocks, twin tube and monotube. The twin tube design consist of a inner and a outer oil chamber, as the shock piston is compressed oil moves between the inner and outer tubes. The next design is the monotube which is exactly as it sounds. The twin tube is the most common and usually gives a more comfortable ride while the more expensive monotube is a much more advance and performance oriented design. The advantages of monotube is that it dissipate heat better since there exist no inner chamber. Additionally monotube can be mounted upside-down (inverted monotube) to decrease unsprung weight.

BC Racing BR Type
Part Numbers: C-03
Features: 2way height and preload adjustment, Monotube design, 15 way adjustable dampening , Front camber plates /pillowball mount
Spring rates F: 6kg/mm | R: 4kg/mm
MSRP: $1250
http://www.bcracing-na.com
Notes:
My Impressions: Company is based in taiwan but product have good reviews. Brake line and sway bar brackets are actually welded onto the lower bracket which is nice.

Some of you might already know this but BC Racing currently have a application listed for 93-97 AE101 Corolla which is also compatable with 98-02.

BC Racing RAM Type
Part Numbers: C-03
Features: 2way height and preload adjustment, Inverted Monotube design, 15 way adjustable dampening , Front camber plates /pillowball mount
Spring rates F: 6kg/mm | R: 4kg/mm
MSRP: $1450
http://www.bcracing-na.com
Notes:
My Impressions: See above

Toda Fightex FS
Part Numbers: 51500-AE1-000
Features: 2 way height & preload adjustment, 12 way adjustable inverted monotube shock, upper pillowball mounts w/ F&R camber plates, 8kg/mm F | 6kg/mm R + helper springs
MSRP: $2820
http://www.todaracing.com/
Notes:
My Impressions: Possibly the most baller suspension system ever for our corollas!

Tein HA
Part Numbers: GST94-B1SS4
Features: 1 way height/preload adjustment, 16way twin tube dampening adjustment, Spring rates F: 6kg/mm R: 4kg/mm
MSRP:
http://www.tein.co.jp
Notes: Discontinued, replaced with Tein SS
My Impressions:

Tein Flex
Part Numbers: DST40-61SS1
Features: 2 way height&preload adjustment, 16way twin tube dampening adjustment, Spring rates F: 6kg/mm R: 4 kg/mm, Pillowball upper mount included, F camber plate
MSRP: $2060
http://www.tein.com
Notes: Available on the Tein USA catalogue! EDFC compatible
My Impressions: Great coilovers but lower spring rates than usual, rebuilds are done in the US by Tein!

Tein SuperStreet
Part Numbers: GST94-B1SS4
Features: 1 way height/preload adjustment, 16way twin tube dampening adjustment, Spring rates F: 5kg/mm R: 3 kg/mm
MSRP:
http://www.tein.co.jp
Notes: Special order from Tein Japan, EDFC compatible, not included in the US catalogue because application doesn't have a brake line retainer for rear drums
My Impressions: Great coilovers but lower spring rates than usual, rebuilds are done in the US by Tein!

Tein MonoFlex
Part Numbers: GST40-F1SS1
Features: 2 way height & preload adjustment, 16way monotube dampening adjustment, Spring rates F: 6kg/mm R: 4 kg/mm
MSRP:
http://www.tein.co.jp
Notes: Special order from Tein Japan, EDFC compatible, not included in the US catalogue because application doesn't have a brake line retainer for rear drums
My Impressions: Great coilovers but lower spring rates than usual, rebuilds are done in the US by Tein!

Cusco CompS
Part Numbers: 122 600 A
Features: 1 way height/preload adjustment, 7kg/mm F | 5kg/mm R
MSRP:
http://www.cuscoracing.com
Notes: Special order from Japan through napsusa.com
My Impressions:

Cusco Zero1
Part Numbers: 122 60E CP
Features: 2 way height & preload adjustment, 7kg/mm F | 5kg/mm R, upper pillow mounts, front camber plates
MSRP:
http://www.cuscoracing.com
Notes: Special order from Japan through napsusa.com
My Impressions:

Cusco Zero2
Part Numbers: 122 60L CP
Features: 2 way height & preload adjustment, 5 way dampening adjustment, 7kg/mm F | 5kg/mm R, upper pillow mounts, front camber plates
MSRP:
http://www.cuscoracing.com
Notes: Special order from Japan through napsusa.com
My Impressions: Extremely high quality coilover, I personally run them on my car and many say the ride quality is are the best they've experience before.

KW Variant 1
Part Numbers: 10256002
Features: Lowers 1.4"-2.5" F / 0.9"-2.1" R Pre Set Damping (not adjustable), unknown spring rates
MSRP: $1423.54 (from shox.com)
http://www.kw-suspension.com
Notes: Application not listed in the US website but exist in the UK website.. currently sold @ shox.com
My Impressions: KW is a highly respected company and I have never heard anything bad about them. From the looks of it the spring rate are progressive.

JIC FLT-TAR
Part Numbers: AE101FLTA2, AE111FLTA2
Features: 2 way height & preload adjustment, 15way adjustable monotube shock, nitrogen gas filled dampener, upper pillowball mounts + front camber plates, 7kg/mm F | 5kg/mm R
MSRP: $1980
http://www.jic-magic.com
Notes: Used to be known as FLT-A2
My Impressions: I hear customer service from JIC Magic USA/Zeal sucks royally! But they do produce a good product.

D2 RS Coilovers
Part Numbers: D2-T010
Features: F&R pillowball mounts included, 2 way height/preload adjustment, 36way dampening adjustment unknown spring rates
MSRP: 1450
http://www.d2racing.com
Notes: It is possible to select spring rates while ordering. Retail prices are typically up to 40% less than MSRP.
My Impressions: I dislike the fact that their logo is a knockoff of the D2 Technik (a reputable German company) logo. This company is essentially the same company in Taiwan with a different name.

K-sport Kontrol Pro
Part Numbers: CTY08-KP
Features: F&R pillowball mounts included, 2 way height/preload adjustment, 36way dampening adjustment spring rates: 7kg/mm F | 4kg/mm R, monotube shock
MSRP: $1400
http://www.ksportusa.com
Notes: Sway bar link is not welded on, zip tie brake line retaines. Typically sells for 50-50% less than MSRP
My Impressions: There are people who'll recommend them but there are just as many people who say they're crap. Initially many have had problems with the shocks blowing prematurely (just after the 1yr warranty) but people who brought them recently says they have been redesigned. Just remember you get what you pay for.

K-sport GT Pro
Part Numbers: CTY08-GT, CTY09-GT
Features: F&R pillowball mounts included, 2 way height/preload adjustment, 36way dampening adjustment spring rates: 7kg/mm F | 6kg/mm R, inverted monotube shock
MSRP: $2000
http://www.ksportusa.com
Notes: Read above
My Impressions: I don't know anyone with them but the inverted monotube design intrigues me

NEX SS Type
Part Numbers: VT-TY06
Features: 2way height and preload adjustment, Twin Tube design, non adjustable dampening
SS1—for normal street use in lower comfortable damping
SS2—for high speed or mountain road driving with higher damping
SS3—for kart or racetrack use with hard damping
Spring rates F: 8kg/mm | R: 6kg/mm
MSRP:
http://www.nexsuspension.com
Notes:
My Impressions:

NEX GT Type
Part Numbers: VT-TY06
Features: 2way height and preload adjustment, Twin Tube design, 4way adjustable dampening, Spring rates F: 8kg/mm | R: 6kg/mm
MSRP:
http://www.nexsuspension.com
Notes:
My Impressions:

TRD Japan Circuit SUS Kit
Part Numbers: 48000-AE180
Features: 1 way height/preload adjustment, 4 way dampening adjustment, 8kg/mm F | 6kg/mm R
MSRP:
http://www.trdparts.jp/english
Notes: Special Order from TRD Japan
My Impressions:

SilkRoad Section RM/A8
Part Numbers: AE101
Features: 2 way height & preload adjustment, 8way dampening adjustment, inverted monotube, 8kg/mm F | 5kg/mm R, upper ridgid aluminum mounts, front camber plates
MSRP:
http://www.silkroad-usa.com/
http://www.intecracing.com/
Notes:
My Impressions:

Buddy Club Racing Spec
Part Numbers: AE101/ AE111
Features: 2 way height & preload adjustment, 15way adjustable inverted monotube shock, upper pillowball mounts + front camber plates, 8kg/mm F | 5kg/mm R
MSRP:
www.buddyclub.jp
www.buddyclub.us
Notes: Special Order from japan through buddyclub USA
My Impressions:

Buddy Club Junior Spec
Part Numbers: AE101/ AE111
Features: 2 way height & preload adjustment, 15way adjustable inverted monotube shock, upper pillowball mounts + front camber plates, 8kg/mm F | 5kg/mm R
MSRP: $1550 est. Shipped Xpress air mail; $1,475 Shipped surface to U.S. (from RHDjapan.com)
www.buddyclub.jp
www.buddyclub.us
Notes: Special Order from japan through buddyclub USA Also avliable here http://www.rhdjapan.com/jdm-low/Budd...-Toyota-51672#
My Impressions: These have the same features as racing spec but cost less??

Racing Gear JTC'N1
Part Numbers: N1T004P (93-97), N1T005P (98-02)
Features: 2 way height & preload adjustment, twin tube construction, 6kg/mm F / 5kg/mm R
MSRP:
http://www.racinggear.co.jp
http://www.jetworld.com
Notes: Special order from Japan through Jetworld USA
My Impressions:

Racing Gear VII-Stage
Part Numbers: ZT004P (93-97), ZT005P (98-02)
Features: 2 way height & preload adjustment, 7 way adjustable twin tube construction, 6kg/mm F / 5kg/mm R
MSRP:
http://www.racinggear.co.jp
http://www.jetworld.com
Notes: Special order from Jetworld USA
My Impressions:

Zep Racing (Sport)
Part Numbers:
Features: 2 way height & preload adjustment, 8way adjustable twin tube construction, front pillowball upper mount, 7kg/mm F / 6kg/mm R
MSRP: 2097.99shipped (from RHDjapan.com)
http://www.zep-rm.com/
Notes: Optional Springrates 5k ~ 12k available. Alailable here: http://www.rhdjapan.com/jdm-low/Zep-Racing-Sports-Coilover-Suspension-AE101-AE111-2dr-4dr-50947
My Impressions:

Zep Racing (Racing)
Part Numbers:
Features: Bilstein based dampeners, F&R pillowball upper mounts, fully made to order!
MSRP: 4081.36 shipped (from RHDjapan.com)
http://www.zep-rm.com/
Notes: Optional Springrates 5k ~ 12k available. Alailable here: http://www.rhdjapan.com/jdm-low/Zep-Racing-Racing-Coilover-Suspension-AE101-AE111-50968
My Impressions: Most expensive coilovers ever for our cars!

kg/mm DNA
Part Numbers: AE101/111
Features: 2 way height & preload adjustment, 15way adjustable inverted monotube shock, upper pillowball mounts + front camber plates, 8kg/mm F | 5kg/mm R
MSRP:
http://www.kgm.co.jp
Notes:
My Impressions:

Sway Bars:
A swaybar (also know as antiroll bar) links the lower left and right sides of the suspension component. On our Corollas, the front sway bar (22mm) is connected between the front left and right lower control arms. The rear sway bar (14mm) is connected between the left and right lower strut bodies. Essentially the sway bar is a torsion spring with the center held against the bottom of the chassis via bushings to serves as a pivot point. As one side (left or right) of the strut is loaded and compressed the bar would attempt to compress the other side. How much the unloaded side compresses is dependant on the diameter and the length of the 'arms' on either side of the sway bar. As the diameter increases the more moment of force is transferred from one side to the other. The same is true when one shortens the left and right 'arms' by mounting the endlinks closer to the center of the bar by way of a blade-adjustable sway bar. An adjustable swaybar feature 2 or 3 different holes on each side/arm used to adjust the “stiffness.” Generally speaking on a FWD car; increasing the stiffness of the front sway bar would increase the tendency of understeer while increasing the diameter of the rear sway bar would increase the tendency to oversteer. A large diameter rear sway bar set at full stiff would likely put you in “tripod mode” during hard cornering.

Hotchkis Sport (front + rear)
Part Numbers: SKU : 22421
Features: 1 1/8" (29mm)Hollow Front, 3/4"" (19mm) Hollow Rear 3 Position Adjustable
Rate Increases
Front 100% stiffer than Corolla S
Rear 219%, 268%, 330% Stiffer than Corolla S Stock.
MSRP: $359.95
http://www.hotchkis.net/
Notes: Hollow bar construction
My Impressions: front may not fit 93-97.. but a guy on Toyotanation have had sucess.

Whiteline (front & rear)
Part Numbers: Front: BTF82 (22mm) | Rear: BTR71 (18mm), BTR71Z(18mm adjustable), BTR71XZ (20mm adjustable)
Features: solid construction, included polyurethane bushings
MSRP: $155- $220
http://www.whiteline.com.au/
http://www.globalperformanceparts.com
Notes: Front sway bar may not fit 98-02
My Impressions: Solid construction are heavier but is worth the extra weight

Intrax (rear)
Part Numbers: 75.7.022
Features: 19mm bar
MSRP: $229
http://www.intraxsuspension.com
Notes:
My Impressions: another 19mm swaybar

Addco (rear)
Part Numbers: 02157
Features: 3/4" diameter (19mm)
MSRP:
http://www.addco.net
Notes:
My Impressions: another 19mm swaybar

Ultra Racing (rear)
Part Numbers: UR-AR19-009
Features: steel construction, 19mm
MSRP:
http://www.ultraracing.com.my
Notes: Go to site for pics
My Impressions: another 19mm swaybar

TRD Japan (front & rear)
Part Numbers: F: 48810-AE051 (may not work for 98-02) | R: 48830-AE051
Features: F: Solid 28mm 57% stiffer, R: Hollow 19.1mm 27% stiffer, bushings included
MSRP:
http://www.trdparts.jp/english
Notes: Special order from TRD Japan
My Impressions:


Suspension Bushings:
The OEM bushings on our Corollas (and most factory cars) are made of a relatively soft rubber designed for comfort and minimizing road noise. As the car ages the rubber gets softer and handing becomes increasingly unpredictable. The solution is to upgrade to aftermarket polyurethane or metal spherical ball bushings. The advantage of using polyurethane bushing is they are stiffer and wears slower. Because of that fact the suspension geometry would stay constant and not change during cornering which gives the driver better steering response and a increase overall driving experience while only marginally sacrificing ride quality. However, metal spherical ball bushings dramatically increases ride harshness and road noise, they should only be equipped on race cars.

NOTE: Installation of aftermarket bushings requires removal of OEM rubber bushings. Removal of OEM bushings are a difficult task and sometime requires specialized tools such as a hydralic press. Installation of new bushing may also require an hydralic press. When in doubt, take it to the professionals.

Front Suspension:

SuperPro control arm front (polyurethane bushing)
Part Numbers: SPF0996K
Features:
MSRP:
http://www.fulcrumsuspensions.com.au
http://www.globalperformanceparts.com
Notes: For front control arms.
My Impressions:

TRD Japan control arm front (urethane bushing)
Part Numbers: 48655-AE051
Features: desc: Lower Arm bushing no. 1
MSRP:
http://www.trdparts.jp/english/parts_bush-ae101.html
Notes: For front control arms. Sold in sets of 2, refer to pics
My Impressions:

Cusco Hyper Rubber control arm front (rubber bushings)
Part Numbers: 120 915 A
Features:
MSRP:
http://www.cusco.co.jp/en/index.html
http://www.napsusa.com
Notes: For front control arms. sold as 1 set
My Impressions:

Cusco Pillow Ball control arm front (spherical ball bushings)
Part Numbers: 120 464 BV
Features: Spherical Ball, includes rubber boots
MSRP:
http://www.cusco.co.jp/en/index.html
http://www.napsusa.com
Notes: For front control arms. sold as 1 set, These pillow ball bushing need welding after press in.
My Impressions: Race car use

Cusco Hyper Rubber control arm rear (rubber bushings)
Part Numbers: 122 916 A
Features:
MSRP:
http://www.cusco.co.jp/en/index.html
http://www.napsusa.com
Notes: For front control arms. sold as 1 set
My Impressions: for 93-95 only

Cusco Pillow Ball control arm rear (spherical ball bushings)
Part Numbers: 122 464 CV
Features: Spherical Ball, includes rubber boots
MSRP:
http://www.cusco.co.jp/en/index.html
http://www.napsusa.com
Notes: For front control arms. for 93-95 only, sold as 1 set, These pillow ball bushing need welding after press in.
My Impressions: Racecar use

SuperPro control arm rear (polyurethane bushings)
Part Numbers: SPF1900K (no caster increase), SPF1901K (passenger side caster increase), SPF1902K (both side caster increase)
Features: Install in rear part of front control arm
MSRP:
http://www.fulcrumsuspensions.com.au
http://www.globalperformanceparts.com
Notes: For front control arms. For 96-97, may fit 98-02
My Impressions:

Whiteline control arm rear (polyurethane bushings)
Part Numbers: KCA340
Features: Install in rear part of front control arm, increase caster by +0.75 deg
MSRP: $72.67
http://www.whiteline.com.au/
http://www.globalperformanceparts.com
Notes: For front control arms. ONLY for 93-95 model years!
My Impressions:

SuperPro control arm rear (polyurethane bushings)
Part Numbers: SPF2298K
Features:
MSRP:
http://www.fulcrumsuspensions.com.au
http://www.globalperformanceparts.com
Notes: For front control arms. For 93-95, same as the whiteline bushing above but with no caster increase.
My Impressions:

SuperPro swaybar (polyurethane bushings)
Part Numbers: SPF0832-20K (20mm), SPF0832-22K (OEM 22mm), SPF0832-25K (25mm)
Features: Replaces OEM rubber swaybar bushing
MSRP:
http://www.fulcrumsuspensions.com.au
http://www.globalperformanceparts.com
Notes:
My Impressions:

TRD Japan strut tophat (urethane bushing)
Part Numbers: 48609-AE951
Features:
MSRP:
http://www.trdparts.jp/english/parts_bush-ae101.html
Notes: Sold in sets of 2, refer to pics
My Impressions:

Rear Suspension:

Cusco Hyper Rubber control arm (rubber bushings)
Part Numbers: 135 921 A
Features:
MSRP:
http://www.cusco.co.jp/en/index.html
http://www.napsusa.com
Notes: For rear control arms. sold as 1 set
My Impressions: 1 set = 2? car needs 8 total. Not sure exactly what years these will fit, possibly 93-95? (28mm?)

SuperPro control arm (polyurethane bushings)
Part Numbers: SPF1947K (28mm bushing housings) OR SPF2938K (31mm bushing housings)
Features: Replaces OEM rubber control arm bushings
MSRP:
http://www.fulcrumsuspensions.com.au
http://www.globalperformanceparts.com
Notes: Make sure you measure your control arm bushing housings before you order!
My Impressions:

Cusco Pillow Ball Strut Rod (spherical ball bushings)
Part Numbers: 137 464 EV
Features: Spherical Ball, includes rubber boots
MSRP:
http://www.cusco.co.jp/en/index.html
http://www.napsusa.com
Notes: for 93-95 only, sold as 2 set, These pillow ball bushing need welding after press in.
My Impressions: Not sure if these are for trailing arms or control arms. Racecar use

SuperPro trailing arm (polyurethane bushings)
Part Numbers: SPF0823K
Features: Replaces OEM rubber trailing arm bushings
MSRP:
http://www.fulcrumsuspensions.com.au
http://www.globalperformanceparts.com
Notes:
My Impressions:

TRD Japan trailing arm (rubber bushings)
Part Numbers: 48715-SW251
Features: desc: Strut rod bush
MSRP:
http://www.trdparts.jp/english/parts_bush-ae101.html
Notes: Sold in sets of 2 (one for each side, need 2 sets each car), refer to pics
My Impressions:

SuperPro swaybar (polyurethane bushings)
Part Numbers: SPF0613-_ _K (replace _ _ with sway bar diameter)
Features: Replaces OEM rubber swaybar bushing
MSRP:
http://www.fulcrumsuspensions.com.au
http://www.globalperformanceparts.com
Notes:
My Impressions:

TRD Japan strut tophat (urethane bushing)
Part Numbers: RR: 48071-AE100, RL: 48072-AE100
Features:
MSRP:
http://www.trdparts.jp/english/parts_bush-ae101.html
Notes: refer to pics
My Impressions:


Alignment Products:
There are two ways to modify camber on our Corolla's McPherson strut suspension, 1) install camber plates top mounts, 2) install camber bolts at the bottom mounts. The camber plates replaces the OEM top hat and usually add a sperical pillow ball which help to eliminate unwanted camber changes during cornering. Camber bolts are a cheaper option, one would replace one or both of the strut to hub mounting bolts in order to pivot the wheel hub to modify camber.

Camber Plates:

Tein
Part Numbers: Ft: PAT26-31PFR, Rr: PRT27-31S90
Features: Camber Adjustable Front
MSRP: $160, $150
http://www.tein.com
Notes:
My Impressions:

Cusco
Part Numbers: Ft: 120 410 A (adjustable), Rr: 120 420 A (adjustable), 120 421 B (non-adjustable)
Features: Includes upper nut
MSRP:
http://www.cusco.co.jp/en
http://www.napsusa.com
Notes: adjustable = camber adjustable, for use with coilovers only, non adjustable are compatable with standard springs
My Impressions:

C-One
Part Numbers: 299.80/pair (shipped from RHDjapan.com)
Features: Front camber adjustable
MSRP:
http://www.c-one.co.jp
http://www.kamispeed.com
Notes: avaliable here: http://www.rhdjapan.com/jdm-low/C-ONE-Pillow-Ball-Upper-Mount-Set-52334
My Impressions:

Camber Bolts:

SPC EZ Cam XR
Part Numbers: Ft: 81270, Rr 81250
Features: Adjustment range: Camber -1.75¡ to +1.75
MSRP:
http://www.spcperformance.com
Notes: Ft: 15mm, Rr 12mm sold as pairs
My Impressions:

Eibach
Part Numbers: Ft: 5.81270K Rr: 5.81250K
Features: +/- 1.75 degrees of adjustment.
MSRP:
http://www.eibach.com
Notes:
My Impressions: Rebadged SPC

Ingalls Fastcam 1°
Part Numbers: Ft: 35430, Rr: 35410
Features: ± 1° Camber
MSRP:
http://www.ingallseng.com/
Notes:
My Impressions:

Ingalls Fastcam 2°
Part Numbers: Ft: I-81270, Rr: I-81250
Features: ± 2° Camber
MSRP:
http://www.ingallseng.com/
Notes:
My Impressions: Another set of camber bolts with the 81270/81250 parts numbers??

Whiteline
Part Numbers: KCA415 (front), KCA412(rear)
Features: 15mm Front, 12mm Rear, adjust +/- 1.5deg camber
MSRP: $68.55
http://www.whiteline.com.au/
http://www.globalperformanceparts.com
Notes:
My Impressions: Overpriced!

Suspension Braces, Bars, and Cages:
Like all modern cars, the Corolla is built with a unibody construction. The unibody automobile is constructed using thousands of robotic spot welds. While this provides the great advantage of making a car lighter, the chassis becomes much less ridged as a consequence. Many of today stock cars must receive additional seam/stitch welds and other bracing in order to be converted into a competitive race or rally car. Many of us would not go to the extent of stitch welding our street cars but adding chassis bracing such as a strut bar is something many of us can do. Bars and bracing helps add rigidity to the unibody chassis, especially at crucial suspension connection points thereby improving cornering stability by minimizing unwanted dynamic changes in suspension geometry. In short suspension and chassis braces helps improve rigidity and thus improves handling.

Strut Bars:

TRD USA
Part Numbers: 00602-53607-005 OR PTR04-02980-05
Features: Steel construction, non adjustable
MSRP: $193.86
http://www.trdusa.com
http://trdsparks.com
Notes: discontinued
My Impressions: Thanks to Mayur for the info

Tom's
Part Numbers: 53680-TAE10
Features: 2point dual bar design, 1pc construction
MSRP:
www.tomsracing.co.jp
Notes: discontinued
My Impressions:

TRD Japan
Part Numbers: 53607-AE101
Features: 3point steel construction attaches to the firewall, not adjustable
MSRP:
http://www.trdparts.jp/english
Notes: Special order from TRD Japan, requires drilling firewall, 7th gen owners need to grind down the throttle cable bracket a little for clearance
My Impressions: I have one, its really nice! paint chips too easily though.

Cusco
Part Numbers: (ALC OS) 122 535A, (OS) 122 540A, (OS-T) 129 540AT, (AS) 122 510A
Features: (ALCOS) OVAL SECTION ALUMINUMU & CARBON FIBER SHAFT, (OS) ALUMINUMU OVAL SHFT, (OS-T) REAR TRIANGLE TYPE SUPPLEMENTARY BRACE, (AS) ALUMINUMU SHAFT - all non-adjustable hinged
MSRP:
Notes: OS-T = 3 point ADDON bar, requires purchase of OS bar, drilling of firewall will be required
My Impressions:

JIC Magic
Part Numbers: DAS-AE101-F, OR DCS-AE101-F
Features: D shaped aluminum shaft, OR D shaped cabon fiber shaft, non adjustable, hinged
MSRP: $168 (aluminum), $298 (CF)
http://www.jic-magic.com
Notes:
My Impressions:

Beatrush
Part Numbers: S8123-FTA
Features: 2point, 38mm diameter, aluminum non-adjustable hinged construction
MSRP:
http://www.laile.co.jp/
http://www.kamispeed.com
Notes:
My Impressions:

C-One
Part Numbers: FT5360-AE111
Features: aluminum non-adjustable hinged construction
MSRP:
http://www.c-one.co.jp
http://www.kamispeed.com
Notes:
My Impressions:

Carbing
Part Numbers: 611 006 0 (type I), 622 006 0 (type II)
Features: type 1 = 2point steel construction, type II = 3 point aluminum construction, non adjustable
MSRP:
http://www.carbing.co.jp/english/
http://www.tein.com
Notes: RHD only?
My Impressions:

Whiteline
Part Numbers: KSB583
Features: Aluminum Alloy, adjustable
MSRP:
http://www.whiteline.com.au/
http://www.globalperformanceparts.com
Notes:
My Impressions:

Tanabe Sustec
Part Numbers: NST-6
Features: Aluminum construction, adjustable
MSRP:
http://www.rd-tanabe.com/
http://www.tanabe-usa.com/
Notes: Special order from Tanabe Japan
My Impressions:

GAB
Part Numbers: STF116
Features: Aluminum construction, adjustable
MSRP: 200 (from toysport.com)
http://www.gab.jp
http://www.toysport.com
Notes:
My Impressions:

Ultra Racing (front)
Part Numbers: UR-TW3-255
Features: steel construction, 3 point
MSRP:
http://www.ultraracing.com.my
Notes: Go to site for pics
My Impressions: KInda ugly looking

Ultra Racing (rear)
Part Numbers: UR-RE2-279 (2pt strut top mount), UR-RE2-102 (2pt in trunk mount), UR-RE4-427 (4pt trunk cage design)
Features: steel construction
MSRP:
http://www.ultraracing.com.my
Notes: have not been fully tested on US chassis yet, Go to site for pics
My Impressions:

Fender Bars:

Nagisa Auto
Part Numbers:
Features: Plated Steel, 3 point
MSRP:
http://www.nagisa-auto.com
Notes: requires drilling 8.5mm hole into frame, special order from Japan
My Impressions:

Ultra Racing
Part Numbers: UR-FD3-027
Features: steel construction, 3 point
MSRP:
http://www.ultraracing.com.my
Notes: requires drilling, Go to site for pics
My Impressions:

Under Chassis Bracing:

Cusco lower arm bar type I
Part Numbers: 122 475A
Features: aluminum
MSRP:
http://www.cusco.co.jp/en
http://www.napsusa.com
Notes: 2point, will not clear automatic transimission
My Impressions:

Cusco lower arm bar type II
Part Numbers: 122 477A
Features: 4point, aluminum
MSRP:
http://www.cusco.co.jp/en
http://www.napsusa.com
Notes: will not clear automatic transimission, may not fit 92-95 or 98-02
My Impressions:

Carbing lower arm bar
Part Numbers: 680 006 0
Features: 2 point steel construction
MSRP:
http://www.carbing.co.jp
http://www.tein.com
Notes: MT only
My Impressions:

GAB lower arm bar
Part Numbers: SLA125
Features: 2 point
MSRP:
http://www.toysport.com
http://www.gab.jp
Notes: Will not clear automatic transmission
My Impressions:

Tanabe Sustec under brace
Part Numbers: UBT-11
Features: 2 point
MSRP:
http://www.rd-tanabe.com/
http://www.tanabe-usa.com/
Notes: Special order from Tanabe Japan
My Impressions:

Tom's lower tie bar
Part Numbers: 53682-TAE10
Features: 2point 35mm diameter, 1pc construction
MSRP:
www.tomsracing.co.jp
Notes: discontinued
My Impressions:

Ultra Racing front lower (arm) bar
Part Numbers: UR-LA4-233
Features: steel construction, 4 point
MSRP:
http://www.ultraracing.com.my
Notes: may not fit 92-95, or 98-02, Go to site for pics
My Impressions:

Ultra Racing side bar
Part Numbers: UR-SD4-543
Features: steel construction
MSRP:
http://www.ultraracing.com.my
Notes:
My Impressions: Can't wait for pics

Interior Bracing & Roll Cages:

DoLuck Rear Cross Bar
Part Numbers: AE101,AE111
Features: connects front seatbelts lower mounting points.
MSRP:
http://www.do-luck.co.jp
http://www.do-luck.com/
Notes: AKA floor bar
My Impressions:

Ultra Racing room bar
Part Numbers: UR-RO2-208A
Features: adjustable steel construction, connects front seatbelts lower mounting points.
MSRP:
http://www.ultraracing.com.my
Notes: AKA floor bar, Go to site for pics
My Impressions:

Safety 21 roll cage
Part Numbers: too many to list, refer to application list
Features: 40mm diametern steel tubing, 11 different configurations, 4,5,6,7,&8 points,through dash/avoid dash, 2passenger/4passenger
MSRP:
http://www.cusco.co.jp/en/
http://www.napsusa.com
Notes: Painted black, other paint colors avaliable, http://www.cusco.co.jp/en/pdf/Roll cage_toyota.pdf
My Impressions:

Cusco roll cage
Part Numbers: too many to list, refer to application list
Features: 40mm diameter chromoly steel tubing, 11 different configurations, 4,5,6,7,&8 points,through dash/avoid dash, 2passenger/4passenger
MSRP:
http://www.cusco.co.jp/en/
http://www.napsusa.com
Notes: Painted cusco blue, http://www.cusco.co.jp/en/pdf/Roll cage_toyota.pdf
My Impressions:

you should add vogtland springs

http://vogtlandsuspension.com/

Springs: TRD USA Springs

Coilover Sleeves:
Sunk2 Racing

Full Coilover:
D2 (possibly same as Ksport?)

Also there is alot of crap for our cars from Ultra Racing.

oh and....the msrp on some of those is like +100 what you can get them for

gotcha, thanks!

MSRP is the price set by the manufacture and I got them straight off the manufacturer sites. The manufacturer usually sell them to the dealers at 20% off and the dealer/store/shop set the prices from there. I've considered not listing the MSRP because it varies so dramatically.. It is best to shop around to get the best price.

TRD USA is discontinued, so is Eibach.. I'm not sure if I should list them???

Also I can't seem to find Skunk 2 coilover sleeves on the S2 website anymore, perhaps discontinued?

I know about Ultra Racing and will be listing them in braces when I get the chance.

some of those are for 7th and 9th gen right?

what do you mean?

sry i meant to ask if your write up is for 7th and 9th gen? but i didnt read it close enough to see that you listed 7th gen info up there too.

Oh no, I'm not listing anything for 9th gen because 1) they have their own site and 2) their suspension setups are so dramatically different from 7th and 8th gen that it would be much better to have a entirely separate thread.

nice write up. keep it up.

i might upgrade my bushings..

=] i figured that one out

stuck this one.. great thread..

Skunk2 are coilover sleeves not springs And thanks for making this. Great stuff in here!
http://cgi.ebay.com/ebaymotors/SKUN...VQQcmdZViewItemQQ_trksidZp1638Q2em118Q2el1247

Also sprint lowering springs too. Ive heard of this brand before too and the box that my TRD springs came in, the seller put them inside a sprint spring box for shipping purposes only so dont know...
http://cgi.ebay.com/SPRINT-LOWERING...hZ010QQcategoryZ33582QQtcZphotoQQcmdZViewItem

not for you

Great writeup! Now I can look around for a good deal on coilover setups. Just reiterating here. Ultra Racing should be added since they make 3 point front strut bars, rear strut bars(required modification to fit though), braces, and fender braces for the 7th and 8th gen. Here my thread on it from a while back. http://trdforums.com/forum/showthread.php?t=31319

Thanks for the links, it has been updated.. Skunk2 probably makes both springs acd coilovers since there are different p/n's

OBX Gravitation coilover sleeves are also available for the 7th and 8th gen too. It's also utilized the singe perch design. I've read reviews saying their comparable to Ground Controls for a fraction of the price.

I can possibly get you the part numbers on teh TRD USA springs. I have them in a box in my room, I can get them now but I have class early tomorrow so I need my sleep. And from what I understand the TRD USA Springs offer 1.5" drop all around.

You're right that lowering springs are for cosmetic purposes only. When I was lowered on H&R springs it actually made the handling and ride worse. I came to realized this when I went back to stock springs. It was the GR2s that reduced roll, squat and dive. Not the springs.

Here's some part numbers. I'm not sure if any of these parts are discontinued.

Whiteline Automotive:
Swaybar-h/duty Blade adjustable (18mm)
P/N BTR71Z

Brace-strut tower alloy adjustable
P/N KSB583

Ultraracing:
Toyota AE101,AE111 Product : Rear Upper Bars
P/N UR-RE2-279

brace-strut tower alloy adjustable is for what now?

Front upper one. It looks similar to megan one you're selling.

don't worry I got all that info.. making this list is just taking much longer than I expected.

nice write up. makes me want to upgrade my suspension.

OK! i'm done for tonight.. still need more work later

Looks great so far. Great job.

thanks! I know I said i'm done for the night earlier but I ended up adding a few more to the list.. ok now time for sleep.

lol

oh man, thats some nice info, thanks a lot
btw i saw tirerack sellin the eibach pro-kits

Great thread. you did a good job:thumb: