Question
Long story made short my brother and I were handed down a C5 with 12K miles because our father bought a C6 and realized he couldn't get much for the 99'.
So my questions are what would be the typical gains with the game plan my brother and I came up with which is...
Cold air induction w/bellow, long tube headers(pacesetter, slp or any recommendations ya'll have), custom tune(again any recommendations) and thats about it. The car already has corsa installed so were good on exhaust.
Again I applogize I know everyone is sick and tired of these threads but I figured this is the best way to get answers. Thanks!
I have ARH headers on both of my rides and they fit great.
If your going to stay stock cubes, 1 3/4 will do. Or go with 1 7/8, then if you go bigger cubes later, you won't have to buy them again.
Typical gain for headers and cold air, maybe 25 > 35 . Each setup is different.
Also do the free mods like throttle body bypass and etc.
Underdrive pulley = 5 > 10 hp.
As toadzq said, a cam and a tune after the new parts are installed would help also.

