aFe Power Gas Axle-Back Exhaust System for Ford F-350 Super Duty 2020 - 2021

3-1/2"-4" 409 Stainless Steel Construction: This axle-back exhaust system is constructed of 3-1/2"-4" mandrel-bent 409 stainless steel tubing for maximum strength and durability.High-Flow 409 Stainless Steel Muffler: This system features a high-flow 409 stainless steel muffler, producing a throaty sound.6" Diameter Polished Exhaust Tip: Finishing off this exhaust system is a 6" diameter polished stainless steel clamp-on exhaust tip. The tip features an aFe POWER logo plate riveted on for a unique style.Throaty Sound: This system produces a throaty sound unleashing all available horsepower and torque.Installation: Utilizing a factory style connection and hangers this system is a direct bolt-on system, which requires no cutting or modifications for a hassle-free installation.Computer-Aided Design: Utilizing state-of-the-art computer-aided design technology, this exhaust system is designed for custom, high tolerance factory fitment.MIG-Welded: 100% MIG-Welded for race-proven strength and durability.Fitment Note: Super Cab / Short bed-148" Wheelbase Super Cab / Long bed-164" Wheelbase Crew Cab / Short Bed-160" Wheelbase Crew Cab / Long bed-176" WheelbaseEmissions Disclaimer: This product does not require a CARB EO#.aFe POWER exhaust systems are engineered and manufactured in our Corona, California facility.