If you notice on the website there are different pipe size and off sets, get a 2.5 pipe diameter and I think the off set is model 42541. I have a 40 with the tail pipe turned down 12" past the muffler before the axle, way before :upsidedow sounds freekin bad a$$.Jon_UT said:ok so i found out that it is just a muffler, but which muffler should I get? there are a bunch of different models
http://www.flowmastermufflers.com/40_orig.html
here is a video of how i want it sounding
http://www.youtube.com/watch?v=UIvvn2Fc7Fk