[Alerosaint]

Originally Posted by Spilner521

Some people will tell you a 3" exhaust is too big even with a supercharger. Since the supercharger provides instant boost, exhaust scavenging at low rpms becomes much less important. With that said, a 3" exhaust will gain a little more power over the 2.5" piping, but it will be pretty loud, especially since there's no turbo in the exhaust stream to help keep it quiet.

I'd stick with 2.5" piping with a Magnaflow metallic high flow cat (part no. 59956), long resonator and large straight through muffler, like something from Magnaflow or Vibrant.

a"lot of my research came off of some of your posts...but im going 2.5....do you think its gonna yield good performance gains compared to 2.75" or 3"
...I already ordered the parts....what you think???...Im s/c up