2006-2007 Chevy/GMC Duramax 2500/3500 4″ Front-Pipe, AL MBR-GMAL421
4″ Front Pipe w/Flange
Chev/GMC 2006-2007 (excl. LMM)
Get even more exhaust flow with this 4″ Front Pipe with Flange.
Constructed from sixteen gauge aluminized steel you can count on this pipe for many years of reliable service.