Engine Suggestions for performance mods

I don't think they're out yet for his year...I think ELP is coming out with one soon though...

Which engine did you 2k rolla come with?

Which engine does your rolla come with (here in South Africa in 2000 it came with the engine I have just bought - a VVTi 20v Blacktop 4AGE) ?

stock, it produces about 160 HP at the fly.

how much HP did yours produce stock, and how much now?

Gimme

Suggestions for performance mods

I own a 2000 Corolla and am in the process of figuring out what all I can do to increase the overall engine performance.
So far this is the list I have come up with...

Pulleys
CAI
Exhaust 2.25", Highflow Cat, Performance Muff
Ground kit
Voltage Stabilizer
Denso or NGK Iridium Plugs

Any other suggestions?
Or is this where I should begin prepping it for Turbo or a Supercharger?

Wont need a CAI for a turbo... 2.25 will be too small with the turbo...

-Cams (If they make aftermarket ones for your engine)
-Higher compression pistons or lower if you're going to boost
-Weight reduction

Well I did 2.25" (& CAI soon to be ordered) because I had not considered boost yet. Possibly down the road, but I was wondering what else I can do now.

upgrade header would be a good upgrade in hp