The LM2 muffler/resonator should bolt right in. They pop up on Ebay from time to time.

The most you can quiet it down is with either a borla xr-1 muffler or a Magnaflow bullet. I vote borla obviously, but know that no matter which resonator you put in there its still going to be very loud!

btw, you will have to cut about 3" off the intermediate pipe between the Y and resonator to fit a borla. The borla muffler is 20" long compared to the LM resonator's 16.5". Any you will have to either weld it in or get 3" band clamps because it is not a perfect slip fit.

what do you guys thibnk about dynomax bullets

I went with the borla XR-1 which sounds nice. I like the deep tone. Im actually going to be buying a GMMG exhaust really soon if your interested in buying mine. ill shoot u a pm