25-02-2013, 07:27 AM
(24-02-2013, 11:00 PM)Toms306 Wrote: I've currently got no exhaust post cat (french pos rusted and snapped) and while its much louder and Mich less laggy, its also lost bottom end torque. Top end is much better, but bottom is noticably worse, do you guys get that with straight throughs or does the pipe give that bit of back pressure that seems necessary for low torque?
You're confusing your exhausts mate, it's only NA engines that need backpressure.