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 5 polished 304 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 maximum durability. Mandrel - bent tubing for maximum air flow and low 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. Polished 5 Tip Rear side - exit exhaust with 5 polished 304 stainless steel clamp on exhaust tip with 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 Quality hardware and clamps are included for a hassle - free installation. It may be necessary to cut the OE Exhaust to remove it from the vehicle. 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.