17215 Our American Thunder® exhaust system for 1998 Ford Mustang Gt and Cobra models with the 4.6L engine is a bolt-on emissions legal system features free-flowing 2.50-inch aluminized steel mandrel-bent inlet pipes, aluminized steel tailpipes and uses the factory hanger locations for quick and easy installation. The kit comes with a pair of Super 44™ mufflers with that iconic deep and powerful sound. The system is then finished off with a pair of long 2.50-inch 304 stainless steel tips for that show car look. Comes with all necessary hardware and easy to follow instructions. Features: Includes Hangers and Hardware for an Easy Installation Mandrel-bent 16-gauge Aluminized Steel Tubing Dyno Tuned for Maximum Performance Super 44 Series Performance Mufflers Uses the Factory Hanger Locations Long Polished Stainless Steel Tips Covered by our 3-Year Warranty Moderate Exterior Exhaust Tone Quick and Easy 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 2WD/4WD 2WD Brand Flowmaster Emission Code 5 Exhaust Series American Thunder Exit Position Dual Out Rear Heat Shield No Inlet Diameter (in) 2.5 Material Aluminized Steel Muffler Part Number Kit Only Muffler Quantity 2 Muffler Series Super 44 Series Outlet Diameter (in) 2.5 Product Type Exhaust System Single Dual Dual Sound Level Aggressive / Moderate System Type Cat-back Tip Diameter (in) 2.5 Tip Quantity 2 Tubing Diameter (in) 2.5 UPC 700042014972 California Proposition 65 Chemical Name Chromium (hexavalent compounds) Nickel (Metallic) California Proposition 65 Required Yes Part Number 17215 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# 17215 Warranty for Part# 17215 Fits 1998 Ford Mustang GT and Cobra with 4.6L engine.