Just finished installing my TDX2 exhaust, and let me tell you, it\'s no joke. This is one of, if not the best sounding exhausts for the 350Z. On top of that, I got very noticeable power gains throughout the rev range, especially low end grunt and the motor revs much more freely. Also, this exhaust is extremely well made and the materials are top grade, so while it is pricey you get what you pay for. One last note is that this exhaust fits really well, HOWEVER, you may want to know what you\'re doing around a car before you try to install this yourself, the tolerances between parts is VERY close, not rubbing, but less than a half inch in either direction in some places lol. Which is all well and good, but the whole system is connected via V-band clamps which don\'t allow a lot of adjustability during the install. So if you have something a little off in the early parts of the exhaust, your tips won\'t line up by the time you get to the end. Places I had the most issue getting the clearance, were right near the chassis brace, and where the passenger side pipe goes between the sway bar and the chassis. But honestly to sum it all up, this is the best exhaust I\'ve ever seen/heard on a Z.