I have an exhaust shop chop my SE's exhaust off about 3 feet from the back, and they replaced it with a "Y" pipe. This was to fit the new SVT rear bumper I got. The exhaust has no mufflers, and the size of the pipes are 1 7/8 inches. (oh yeah it sounds pretty good too
) Now, the problem I'm having is after about 6300 rpm my power dropps WAAAY off, and it even backfired on me at 6700! Is this a case of not enough backpressure, or too much backpressure?? Also how bad is it to run the car this way??
