[BallerStatus]

how much increased horsepower did you guys get after doing I/H/E on your i4?

im thinking about getting that done to mine in a few months after i get some money together, also how much did you get it installed for if you didnt do it yourself?

 

[PghTibPirate]

well, search for dyno results. and look in the thread with "perfomance upgrades" in the i4 forums.

i/h/e = around 15-20 HP. give or take a few. depends on what you get.
CAI will net you a horse or two more than SRI,
and each exhaust is different.
each header is different.
it's different from each product, and different from each dyno you go on.