Has anybody tried to make a Dr. Gas X-pipe fit on an auto 98 GT? Could you just have an exhaust shop lengthen the tubes before the crossover to move the crossover back to clear the auto transmission? I just had my 40 series flows installed, and think they sound a bit lacking. Would an X-pipe make it sound better. I know this is a bit subjective, but I am not really impressed with the flows as is. But for $140 installed, inluding the mufflers, I can't complain.