I have the Turbo Xs TBE. All I can say is LOUD! No cats straight 3 inch pipe with two resonators and a tip. You can really hear the turbo spool. Had some problems with the flanges, warped I think. Small leak at two points. But I live 25 min from Turbo Xs, and they hooked me up with new pipes. A few more things I would like to add. When you take off and get wheel spin, the exhaust has one less hanger. So in turn you will hear it bang around a little grrrrrrr. At stop lights, you will get the "turbo smoke" if you sit at idle. But I just hold the r.p.m. around 1500 and no problem just loud. Oh and watch out for the O2 sensor on the downpipe, the dealer stripped the threads and I had to buy a new one. Hope this helps!!