[Trickstr]

Single exhaust seems like it would be an easier set up since I would not have to have the shop put in a y pipe. They would just duplicate the stock pipe just with a larger size. The stock y pipe is right at the rear wheels, where it would be just as easy to intall a single can there. A place near me quoted me $170 with a 40 series Flowmaster complete. I was looking at some of the manufactures web sites and it seems that I would not loose very much with one muffler flowing 3" exhaust vs. 2 mufflers flowing 2 1/2"

Are the error codes from a too free flowing exhaust a problem in OBDI cars or just the newer ones?