Engine Whats The Best Spark Plug???

Whats The Best Spark Plug???

Hey I want to change my spark plugs i dont want a stock one, do you know the best one out on the market?







Thanks....

I like Denzo spark plugs

I like Denzo spark plugs get denzo they work good for me.

ngk iridiums are just as good.

id go wid ngk's too...best stuff out dere!!watch out for the heat range thou...

I say denzo because it helps my turbo car.........

NGK coppers. They conduct better than iridiums. Iridiums are only popular because they last longer, where as coppers need replacement more often.

i'll go with borsch

I tried ngk iridiums they bust fast like 35000 miles even with frequent oil changes
Bosch P4 is great but toyota doesnt recommend platinums for the 9th gen though i tried copper but its like race plugs you have to change em every month
i want to ask hooola about the plugs his the best on 9th gens here i guess

how often do those coppers need to be changed?

i bet they don't last long at all

for a rolla motor unless its a vvti just get standard replacement bosch or what ever is cheap at the parts store. Replacement with regular oem style plugs will still increase power and fuel economy over worn plugs, but replacing them with expensive iridium is over kill unless your running advanced timing, full intake header exhaust ect...

side note, the reason the vvti came with iridium was for the time advance it creates and for the long long term durability of iridium plugs

i runch bosch platnum in my 02 rolla and runs just dandy