4" DOWNPIPE BACK EXHAUST WITH MUFFLER | 2001-2004.5 SILVERADO/SIERRA HD EXT/CREW CAB 6.6LImportant Note: This product requires the use of aftermarket tuning
4" DOWNPIPE BACK EXHAUST WITHOUT MUFFLER | 2001-2004.5 SILVERADO/SIERRA HD EXTENDED/CREW CAB 6.6LImportant Note: This product requires the use of aftermarket tuning
4" DOWNPIPE BACK EXHAUST WITH MUFFLER | 20-26 SILVERADO/SIERRA HD EXTENDED/CREW CAB 6.6L DIESELImportant Note: This product requires the use of aftermarket tuning
4" CAT & DPF DELETE PIPE WITHOUT MUFFLER | 17-25 SILVERADO/SIERRA HD EXTENDED/CREW CAB 6.6L DIESELImportant Note: This product requires the use of aftermarket tuning
4" CAT & DPF DELETE PIPE | 15.5-16 SILVERADO/SIERRA HD 6.6L DIESEL WITH 3-BOLT FLANGEImportant Note: This product requires the use of aftermarket tuning
4" CAT & DPF DELETE PIPE WITH MUFFLER | 17-25 SILVERADO/SIERRA HD EXTENDED/CREW CAB 6.6L DIESELImportant Note: This product requires the use of aftermarket tuning
4" DOWNPIPE BACK EXHAUST WITH MUFFLER | 2015.5-2016 SILVERADO/SIERRA HD EXTENDED/CREW CAB 6.6L WITH 3-BOLT FLANGEImportant Note: This product requires the use of aftermarket tuning
4" CAT & DPF DELETE PIPE WITHOUT MUFFLER| 11-15 SILVERADO/SIERRA HD EXTENDED/CREW CAB 6.6L WITH V-BAND CLAMPImportant Note: This product requires the use of aftermarket tuning
4" DOWNPIPE BACK EXHAUST WITH MUFFLER | 2011-2015 SILVERADO/SIERRA HD EXTENDED/CREW CAB 6.6L WITH V-BAND CLAMPImportant Note: This product requires the use of aftermarket tuning
4" DOWNPIPE BACK EXHAUST WITHOUT MUFFLER | 07.5-10 SILVERADO/SIERRA HD EXTENDED/CREW CAB 6.6L LMM DURAMAXImportant Note: This product requires the use of aftermarket tuning