Bolt on a SLP PowerFlo Stainless Steel Cat-Back Exhaust System and pump up the power and efficiency of your Silverado/Sierra pickup. These 100% mandrel-bent systems are equipped with a low restriction muffler for optimal performance and features stainless steel double wall tips for unmatched appearance. Expect increases of up to 12 horsepower with a deep, muscle car rumble exhaust sound with minimal interior cabin resonance. Each PowerFlo exhaust system includes OEM style hangers and clamps (that are designed to fit factory attachment points and hardware), high quality, polished, dual wall exhaust tips, installation hardware and instructions.