high guys and gals. was wondering if any of you are running with a scorpion non resonated cat back? do they sound good? see them on ebay and im very tempted! my friend has a mongoose cat back and it sounds nice, but a little quiet. he is gonna fit a decat to make it sound a bit more fruity. i dont wanna do this myself. i hear piper non resonated are good if a little expensive! any info on the scorpion would be great. cheers.