I installed the 3" dual muffler, stainless steel system from GN1 Performance and I very pleased with it. Before that, I had an ATR "Single Shot" which was also ok,even if it required a little more "tweaking" to have it to fit properly. Also, I preferred the dual exhaust look, plus I'm getting a 4" downpipe this spring and I was told that having two 3" pipes attached to it would create less restriction than a single 3" system, which does makes sense...:wink: