2011-2015 Duramax LML P1 4" Installer Series Race Pipe w/ Muffler (CGMAL432)

The P1 Performance Products CGMAL432 is the perfect setup for the 2011-2015 GM Duramax that's being built to perform. The 4" Performance Race Pipe is backed by a P1 Performance Products 3-year warranty and is built in Canada with heavy-duty aluminized steel - it offers value without compromising on build quality.