The Flowmaster® American Thunder® axle-back resonator delete kit is designed for the 2017-2020 Dodge Charger R/T and Daytona's with the 5.7L Hemi engine. The 3.00 in. stainless steel tubing is mandrel-bent and will give your car a moderate increase in exterior sound with a pleasant interior growl at cruising speeds. Simple installation requires cutting the factory tailpipes just behind the factory exhaust valves, slide the slip-fit tailpipes over the factory pipes, then clamp into place. The tailpipes re-use the factory hangers and exit back through the rear valance for a factory appearance. This axle-back system designed for an easy fit and includes all necessary parts and hardware for an easy installation. Notes: This kit contains resonator delete tailpipes only and retains the factory mufflers.