This product is for Racing Competition only and is not legal for use in highway or street vehicles or other non-racing competition off-road vehicles.
Purchasing this product requires you to sign our Vehicle Compliance Waiver here.
For the person who is looking for a complete Cat-back dual exhaust system with an aggressive tone. With easy fit in mind, these systems are mandrel bent for maximum performance and include specially selected mufflers. American Thunder systems deliver a moderate to aggressive interior and exterior tone and are suited to the enthusiast who wants their performance to be heard. Like all Flowmaster systems, the benefits include improved throttle response, power and mileage. Designed for an easy fit, these systems include all necessary parts and hardware for easy installation.
Dyno tuned for maximum performance
Mandrel bent 16 Gauge Tubing
Moderate Sound exterior exhaust tone
Includes hangers and hardware for easy installation
California Proposition 65 Chemical Name: Chromium (hexavalent compounds)
California Proposition 65 Chemical Name: Nickel (Metallic)
California Proposition 65 Required: Yes
Emission Code: 5
Exhaust Series: American Thunder
Exit Position: Dual Rear Exit
Heat Shield: No
Inlet Diameter (in): 2.5
Material: Aluminized Steel
Muffler Part Number: Kit Only
Muffler Quantity: 2
Muffler Series: Super 40 Series
Outlet Diameter (in): 2.5
Product Type: Exhaust Systems / Kits
Single Dual: Dual
Sound Level: Moderate Sound
System Type: Cat-back System
Tip Diameter (in): 3
Tip Quantity: 2
Tubing Diameter (in): 2.5
Warning: California Proposition 65
Fits 1999-2004 Ford Mustang Cobra with 4.6L DOHC engine.