817817 The Flowmaster Scavenger Series X-pipe system for 2018-2023 Ford Mustang GT with 5.0L engine is a great way to increase maximum power and give a deep unique sound to your Pony. The Scavenger Series X-pipe is not for the faint of heart, since this system eliminates the factory resonators and will increase both the interior and exterior sound levels. This system can be used with either the factory rear mufflers, or with our Flowmaster axle-back exhaust systems. The pipe kits are constructed with 2.50-inch 409S mandrel-bent tubing, includes all necessary hardware and is covered by our Lifetime Limited Warranty. Note: Fits coupes and convertibles. Features: Compatible with Factory Mufflers or Flowmaster Axle-back Systems Includes Clamps, Hardware and Adapter Pipes Mandrel-bent 2.50-inch Stainless Steel Tubing Dyno Tuned For Maximum Performance Maximum Power and Increases Sound Over 35 Years of Flowmaster Quality Includes all Necessary Hardware Eliminates The Factory Resonator Straight Forward Installation About Flowmaster Flowmaster® is a household name, and for good reason. They've built legendary exhaust systems and mufflers for decades, and now offer performance air intakes, catalytic converters, and headers to give your hot rod performance to match the iconic Flowmaster sound. SPECS Brand Flowmaster Catalytic Converter Included No Emission Code 5 Heat Shield No Mount Type Uses Factory Hangers Muffler Quantity None Product Type Exhaust Accessories Single Dual Dual System Type Exhaust Accessory Tip Quantity Not Included Tip Style Not Included Tube Diameter 2-1/2 Inch Tubing Diameter (in) 2.5 Tubing Material 409S Stainless Steel UPC 700042037698 California Proposition 65 Chemical Name Chromium (hexavalent compounds) Nickel (Metallic) California Proposition 65 Required Yes Part Number 817817 EMISSIONS 5 This part is legal for sale or use on Emissions Controlled Vehicles, Uncontrolled (Non-Emissions Controlled) Vehicles, and Racing Use Only Vehicles because it does not affect vehicle emissions and is not covered by emissions regulations. TECH RESOURCES Instructions for Part# 817817 Warranty for Part# 817817 Fits 2018-2023 Mustang GT with 5.0L engine. Fits both Coupes and Convertibles.