4" Exhaust
4″ Downpipe Back Delete Exhaust W/Muffler | 15.5-16 Duramax
431018-871USD $797.81
4″ Downpipe Back Delete Exhaust No Muffler | 11-15 Duramax
431017-864NMUSD $681.62
4″ Downpipe Back Delete Exhaust w/ Muffler | 11-15 Duramax
431016-864USD $712.60
4″ Downpipe Back Exhaust with Muffler | 01-07 Duramax
431107-801USD $588.67
4″ Downpipe Back Exhaust no Muffler | 01-07 Duramax
431112-801NMUSD $534.46