Description
SuperSprint Performance Muffler, BMW E46 M3 735iL Their unique 6" thick step core Bore Size Thickness:87.5 mm 0.089" RAD 20 0519 B48 Cylinder Head Valve lock keepers Their unique 6" thick step core design adds a 115° angle to the top section to allow for additional charged air cooling without fully obstructing other heat exchangers brought to you by ARP the world leader in fastener technology