Time for a new muffler, Advice? Options

[6G96GT]

I already have the ebay header installed along with a flex pipe and performance catalytic converter. I need a new muffler now and the piping that rides up and over the rear pass-side axle. I did have an Aeroturbine Muffler but I want something that will be more acomadating for my exhaust setup. Something that sounds deep and doesn't get tinny in the upper RPM range. Any ideas?

[razor7]

If you want something that doesn't get raspy at high RPMs, then you need to look into name brands (ie. Greddy) and just as Ryouxrs said, you'll need a resonator.

In fact, probably 90% of the tone is derived from the resonator. I just put a Greddy SP 2 muffler on my stock system (stock resonator) and it's a little bit louder (less baffling inside of the muffler, newer filling, etc.) but the tone itself is almost exactly matched to my stock exhaust. Thanks to this, I've got an increase in power, but without pissing off my neighbors when I come home at 4-5am. Your first step should be to look into getting a resonator, the second step should be your muffler itself.

If you also want it to be a little bit deeper and meaner, enlarge your piping. I believe that standard piping on the GTs are 1.75" most people here say that you should go to 2.25" if you keep it N/A, or 2.5" if you turbo it. Your headers should be 2.25" already, or possibly 2.5". Take it to a muffler shop and have them remove and re-weld all of the piping. You'll love the outcome.

-TC

This post has been edited by razor7: May 3, 2009 - 10:34 PM