Any one tried the XR-1 catback exhaust in their GT yet. I know Evolution Performance sells this exhaust for their GT500s but i really do not see a difference except for the XR-1 race muffler in place of the Stinger. I am seriously considering it, seeing as my Coffins are a race muffler and i love the sound even though i can wake up a 3 block radius around my house when i get home at night.

 

The interior of the muffler on the xr-1 looks different than the regular stingers I have, the xr-1 appear to be divided into 4 channels and the stiner is one. The stinger catback system is awsome, I have it coupled to my xr-1 racing headers and o/r xpipe.