Being a turbo car I wanted the sound to be more than a whisper so I deleted the rear mufflers, installed a magnaflow muffler behind the stock resonator (cherry bomb style) and had tail pipes fabbed that would allow tips to exit similar to the new Si pics I've seen. Just a little trimming and cutting to the bumper and I think the tips look at home. The sound is probably the best I've heard from a Civic. Nice low growl, not too loud, no droning and really sounds sporty. I have a video clip but nowhere to post it. I may get a youtube account if you want to hear it.