i was readin on a site that the stock headers for a 2000 celica gts would perform better than aftermarket headers. is this true?
I dunno...the GT-S is a weird car...I read that these car guys in a mag
took of the air box which apparently is SUPER restrictive and gained like 7
or 9 fwhp on the dyno. Man that air box must have sucked (or rather not
So...anything is possible...I know that it's very hard on some tuned out car like the ITR and S2k that rev high to extract much more HP...and some mods dont help but hurt the performance already setup by those R/D guys.