2011-2015 Duramax LML P1 4" Downpipe Back Street Exhaust System w/ Muffler (C6044P)

Maximize performance in your race built 2011-2015 GM Duramax 6.6L with the P1 Performance Products C6044P 4" PL Series Downpipe-Back Exhaust System. Built from heavy duty aluminized steel, the P1 Performance Products Performance Series exhaust systems offer a value price without compromising on the quality built into every component. While the seams are a major point of rust through with some budget systems our fully sealed tubing adds years to your system.