Labree resonated X pipe that tapers to 2.5" to fit my 2.5" B&B back-half muffler sections. This setup is the best sounding exhaust I've has thus far. Not loud, but still aggressive with no drone. The fuel smell has been eliminated. It seems the older I get, the more I tend to mod for comfort / quiet vs all-out power. My car has a lot of mods, so sacrificing a few hp for comfort / quiet is no big deal.