Hey, don't you have a lot of $$$? Maybe you can do a test for us Get on the dyno w/the stock piping and the hayame muffler, then go on the dyno again after you get catback done. Someone needs to prove osama's theory that stock piping yields more power than 2.25" piping.krackmnkysnick said:Ive got one on the way from alex. I also have a Stillen header and downpipe, and getting 2.25 custom piping done at Meineke when I get this in. I'll let you know how it looks and sounds.