DynoMax Bullet Racing Muffler - 4" In, Out - 5" Diameter - 12" Chamber Length, 16-1/2" Overall Length LY23371 327 in Oval Port

327 in Oval Port

570" ID that works well with our 951 dual valve springs

The kit includes a speedometer

Internet Updateable Using Free Ignition Update Software

DynoMax Bullet Racing Muffler - 4" In, Out - 5" Diameter - 12" Chamber Length, 16-1/2" Overall Length LY23371 327 in Oval PortDynoMax Bullet Muffler Compact, round design for tight ground clearance. Moderate sound control RACE USE ONLY! Center Inlet Center Outlet Light weight compact design 100% welded design for maximum durability CRF Technology which helps provide up to a 4 dbA sound reduction, on most race applications, while maintaining a deep race toneDynoMax Performance Exhaust the power speaks for itself. Product Description: Muffler Race Series Bullet 4 in Center