I have the comptech sport, can't complain. A little noiser than I would like. Also seems to get louder with heat, like after a long road trip. But it is a DEEP throat noise, not what my brother calls a "fart muffler" like the pacesetter on the '90 civic I just bought...gonna have to fix that. Deeper is better, or at least thats what she tells me......the Teg that is. Only had exhaust about a year but no problems<knocking on wood>