I had the IPD Plenum but removed it and went back to stock after after an identically modded car showed power gains by removing the IPD plenum and going back to stock. This was with a GIAC tune so I make no representations about the Cobb tune and the IDD Plenum. So I am running a stock Plenum

I tried aftermarket headers but the Dyno testing on my car revealed power loss from stock and no matter how we tried to tune the car we could not get any gains but only a loss. So I am running stock headers.

I am also running a stock y pipe. The Dyno testing of a car with identical mods to mine using aftermarket Y pipe did not reveal sufficient gains to justify the expense.

The only modifications I could do short of building the transmission and upgrading the clutch packs that would get me significant power gains is meth injection or nitrous. I have no interest in doing either.

 

thanks, big help.

 

Some of these things may very well work great with other tunes. I make no representations in that regard. I'm just explaining to you my own personal thought process with my particular set of tune and mods and why my car has certain mods and why it does not have others.

 

Hi,

Whats the brand on the headers?

Manuel

 

FVD. There is a thread on it with much more details.

 

Noted.