Quote:
Originally Posted by Celica00
you helped me once already hopefully you could help again (or anyone) if this had 250 whp and you add a headerback system what feasable gains would you get? 10 to 15 extra whp?
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They made 230rwhp with nothing more than the kit at 5psi, a catback and a high flow filter.
They then managed 280ish rwhp with 6.5psi and a full(200 cell catted) 2.5" turbo back exhaust.
I think that the stage 1 kit, with a high flow airbox(in production) and a full headerback exhaust while still at 5 psi will net you around 250-265rwhp.
To directly answer your question, if you had this car at 250rwhp with stock exhaust, upgrading to a full 2.5" TBE with no cats would probably net you around 20rwhp.