just wondering, but i've worked for honda for 6 years and i haven't actually been this excited about a new release since the 99-2000 si. anyways, i tried the HFP muffler and found that it sounded pretty good, but as we were changing it back to stock, my friend said " go ahead and start it up without any muffler at all" , since it has a resonator before the end of the B pipe. so i thought " what the hell can't hurt anything!" to me it sounds better than most aftermarket " farrrrrt cans out there today"
if you have some free time, and don't have an aftermarket exhaust yet, go ahead and try it, it really surprised me........ especially when you hit about 5k- and up on the RPM's.... sounds really good. plus i did notice a "butt dyno of difference"
lots o' fun