To that point there are a couple of other options for exhaust systems out there. The Nismo S Tuned a little better the oem a just a tad louder and I would be curious how the aam 2.5 " dual mide pipes attached to the back section of the Nismo exhaust would work. That muffler on the back of the Nismo exhaust really knocks down the sound.

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I have access to a Nismo exhaust. It would be pretty restrictive though wouldn't it?

Yes... that is why I would get the aam mid pipe to mate to it. Or you could have a custom mid pipe made. The last section of Nismo exhaust is 2.5" I believe.

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:iagree: 2.5" is probably all you want anyway... Being SC you still get scavenging benefits of back pressure like an NA car would (as opposed to turbo cars which benefit from the least restriction possible after the turbo).

I also think the Garageline exhaust would be a good alternative as well, and it is modular I think (flanges between parts take place in factory locations...), so you can mix and match parts like mid pipes, y/x pipes, axel back. (and its cheap).