Hey Coastie! I am glad you mentioned the potential for power loss when adding a different exhaust setup. I used the Hushpower II by Flowmaster - the thing freaking GROWLS!! I love how aggressive it sounds and it is also small and has it's own internal heat shield which is what sold me on it since my dog lays just above the muffler location. Holding 60 mph creates a sometimes annoying drone hum, otherwise it sounds awesome around town! SO... now the bad stuff. It has been my experience that a straight-thru design reduces the back pressure enough to rob you of your low-end torque. I do feel an increase in top end power on the highway but around town that "punch" that I got when I swapped gears, lessened. Whatever you choose to do... but I would recommend something that doesn't take away too much back pressure. I was also curious about the SuperTrapp mufflers as you can adjust the noise and back pressure with diffuser discs on the outlet - and they look like competition pieces as a bonus!