FLOWMASTER CAT-BACK DUAL EXHAUST SYSTEM WITH QUAD TIPS; 19-26 SILVERADO/SIERRA 1500 5.3L EXTENDED/CREW CAB Large 4.00-inch Black Ceramic Coated Stainless Quad Tips Max Dyno Gains of 15 hp and 19...
5" TURBO BACK EXHAUST WITHOUT MUFFLER | 23-26 SUPER DUTY EXTENDED/CREW CAB 6.7L AUTOMATICImportant Note: This product requires the use of aftermarket tuning