Evo Tri Flow
 

Does anyone have this system if so how does it sound? is it worth the money? any HP gains?
Thanks guys,
Bob

I heard it's a pain in the ass to install yourself. Something about a tight fit if I remember correctly, but I don't have one.I've seen dyno charts, and I guess they add around6-8hp. They also sound better, or so I've heard. Ask porscheboy,he has one.