mattdel

put the long tubes and midpipe for sale on here, they will sell quick, get yourself some mac shortys and midpipe to match... or something

ZachW04Stang

Running 3 inch exhaust with long tubes shouldn't make your car backfire or run rough. It might bog on the low end but it wouldn't actaully cause it to backfire. I would make sure you don't have an exhaust leak near the 02 sensors or before. Sounds like its either started running to lean or rich from incorrect 02 sensor readings.

iceman89gt

bbk shorty, x-pipe, and flowmaster would be fine, im glad 7up and the other guys got to ya before i did, they took the typing right off my fingertips, you just trying to walk a chihuha on a st. bernards leash. you either gotta get a bigger dog or a smaller leash. but still check that o2 sensor because if your stock i know its still reading and if its not on that will also give you heck. try the o2 first then go from there.