Muffler, race, Moroso Spiral Flow, 3'' in and out, 12'' overall

Moroso Spiral Flow mufflers are the same low restriction all-steel mufflers we use on our vintage race cars.  Much more than low restriction mufflers, they feature specially engineered spiral baffles that cancel noise with minimal back pressure.  These are the next best thing to running an open exhaust for an absolute maximum free flow.  They will also effectively lower the decibel level by 5-7 decibels over open collectors.