Now your 19 - 20 SilveradoSierra can have that custom look with this aFe POWER Apollo GT cat - back exhaust system. 3 mandrel - bent, 409 stainless steel tubing and high - flow muffler improves performance across the power band and delivers a deep, aggressive exhaust tone. 100 MIG - welded for strength and durability with a 5 black stainless steel exhaust tip for a custom look. 3 409 Stainless Steel Tubing This system is constructed of durable mandrel - bent 3 409 stainless steel tubing for strength and durability. Mandrel - bent tubing maximizes air flow and decreases turbulence, delivering increased torque, horsepower, and improved throttle response. High - Flow Performance Muffler A high - flow stainless steel muffler allows increased exhaust flow and reduces exhaust drone, maintaining a deep, tuned sound. Black 5 Tip A 5 black stainless steel clamp on exhaust tip, with a laser cut aFe POWER badge for a custom - styled look. Perfect Fit Factory - style bayonet hangers are used to maintain a stable pipe location during high vibration and high heat conditions for a secure fit. Hassle - Free Installation No cutting or modifications required. Quality hardware and clamps are included for a hassle - free installation. This item fits Crew Cab Short Bed (69.92), Crew Cab Standard Bed (79.44), Double Cab Standard Bed (79.44), Emissions Disclaimer This product does not require a CARB EO All aFe POWER exhaust systems are engineered and manufactured in our Corona, California manufacturing facility.