Ive been hearing a very annoying rattle under my truck around 2000rpms. It took the dealer three days to find out its a broken baffle inside the muffler. Its 175 for the new baffle so Id much rather put a good sounding exhaust/muffler on. So my question is whats best for replacement mufflers. Anyone used a glasspack? Do I need to worry about the backpressure with the blower? Anyone removed the cats? I need to replace the muffler soon so any help would be apprecited. also anyone have any sound clips of what theyve done? thanks a lot