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      11-23-2009, 06:44 PM   #109

Drives: 135i, 996tt, e60 M5, tundra
Join Date: Aug 2007
Location: So Cal

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Originally Posted by powertrip View Post
I'm wondering if the difference is realted to AA using 3 inch piping . Just a thought.
There are different things that you can do to change how your powerband is going to be. If you make a muffler a certain way, youll have to make the piping a certain way (how you want the powerband). So, if you go with large 3" piping, you are already going to lose a lot of exhaust velocity. You need to make the muffler work for that size piping. I would say 90% of the exhaust brands out there dont know how to design "working" exhaust systems. Its all hype and branding really.