'10-'13 Chevrolet Silverado/GMC Sierra 1500 Truck 4.8L-5.3L Extended Cab, Standard Bed and 4.3L-5.3L-6.0L Crew Cab, Short Bed Cat-Back Single Widowmaker Exhaust System, Stainless - #BW615621

Add Black Widow Exhaust's deep and aggressive signature sound to your ride. Exits behind the rear tire near the stock location with a polished stainless tip. Quieter in the cab than any other performance exhaust. Dyno tests show that our systems make maximum horsepower and torque throughout all rpm ranges. Average horsepower gains are 10-15 and 15-20lb-ft of increased torque. Hassle free, bolt-on installation with professional looking results. No welding required. Backed by our Lifetime Limited Warranty.