Corsa Xtreme, Sport / 3.0 in Cat-Back 4.0 in Twin Tips | 2018-2023 Mustang GT Coupe (21040, 21042)

VEHICLE FITMENT 2018-2023 Ford Mustang GT 5.0L V8 Fastback (No Valves) *For vehicles without Active Valve exhaust PRODUCT DESCRIPTION 3.0" Cat-Back, Dual Rear Exit with Twin 4.0" Polished Pro-Series Tips Xtreme Sound Level - Part Number 21040 +5HP +4TQ +48% Flow -9lbs Weight Savings Sport Sound Level - Part Number 21042 R ecommended for pairing with aggressive engine modification +5HP +4TQ +48% Flow -4lbs Weight Savings INSTALLATION Xtreme 21040  Installation Instructions Sport 21042 Installation Instructions 📹 Tip Adjustment Video YEARS: 2018, 2019, 2020, 2021, 2022, 2023