I too have TTI headers and a full TTI X pipe system all the way back to the turndowns...I have NEVER had an exhaust system that looks fits and sounds as good as this...Im sure there are systems that sound better but I have no rattles or header noises common with cheap pipes..It is mounted so solid its like it was a custom build...After seeing it first hand on my car I wont ever buy another brand of headers or exhaust pipes ever...Mufflers maybe..