c 4 mods

[stef 89]

Hi everybody, i own a 89 c4 i plan to put a Borla cat back system (maybe delete the cats) CAI and a Hypertech stage 2 chip do i forget something??? And, how much hp gain should i expect??

sorry if i make mistakes the way i write i'm french so i do my best

thanks for help

st

 

[Woodstock Car Guy]

Sounds like a nice place to start. Let us know how it turns out.

 

[HLN A55]

20-25 hp...

 

[87stocker]

Get a set of hedders. Heddman Elites are very nice. Scrap the chip idea, and get some high flow runners, and a lower intake and port the upper to match the runners. After that, get a cam, and gasket match your heads. The 113 heads on 88+ are a nice portable head. Get a true dual exhaust and you will be very surprised how much gaing you will get. Trust me I have done it all before.

 

[stef 89]

Get a set of hedders. Heddman Elites are very nice. Scrap the chip idea, and get some high flow runners, and a lower intake and port the upper to match the runners. After that, get a cam, and gasket match your heads. The 113 heads on 88+ are a nice portable head. Get a true dual exhaust and you will be very surprised how much gaing you will get. Trust me I have done it all before.

thanks, sounds good! i'll these infos