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" CAT & DPF DELETE PIPE WITH MUFFLER | 20-22 SUPER DUTY F-450/F-550 CAB & CHASSIS 6.7LImportant 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 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" COIL KIT 05-22 SUPER DUTY DIESEL Designed to withstand full coil bind: you can smash our coils to totally flat and they will return to their original height A...