Originally Posted by DaVinci87x

Well all you are saying is just common sence i guess. And yeah i did use the search feature cuz this thread is now right where i started it lol like i said. Plenum/Exhaust/Headers. So yeah. Anyways I have another question.

I havent decided if i will go F/I or Nos or S/C but i definetly want an HKS Hi Power exhaust. If i get it will it be an obstacle later on. Will i have to replace it?

Originally Posted by boostcraver

There is no need to flame this guy, I was hoping for the same kind of "Power Primer" guide as I've also seen on other forums. This request is not illogical. What *does* make sense to me is someone at a shop with documented dyno runs after every mod... For reference here is the MR2 power primer, it's a great read - http://www.mrcontrols.com/primers/power.htm


"... just about everyone agrees with Intake/Plenum/Exhuast/HFC - Headers then a tune so you do not risk running overly lean from all the breathing mods."

Above is great info - but how much should I be expecting to see at the crank, and at the wheels after this work? If I'm only at 320 HP then maybe I don't want to spend the $500-$1500 for another 20 HP. This is the kind of data I'd like to make an informed decision about modifying the car.

A big mistake IMHO is to start modifying the car without a clear goal in mind. For example, my goal is 350 crank HP. But with the data at hand right now, I don't know if the above mods will bring me there, or (hopefully) past it.