Yeah i would have to agree with XStanger. Having owned 3 different x pipes in about a 3 month span. I would have to agree there isnt really much difference in sound. Fitment well a little . But after having a bassani and dr. gas i ended up keeping my BBk it sounds great. Not a real fan of the high rpm raspy sound but i noticed a good rise in power. Next step gonna try a o/r h pipe. Thats my 2 cents.