American Thunder® is the "original" Flowmaster sound. In most cases a very aggressive sound level, American Thunder systems use various chambered mufflers to achieve the performance gains and aggressive sound that you want from your car or truck, inside and out. Available in stainless steel or economical aluminized steel, American Thunder systems are a great choice when you want to be heard.

Fitment Information

• Ford Mustang GT / MACH1 / Bullitt 4.6L SOHC (1999, 2000, 2001, 2002, 2003, 2004)

Emissions Compliance

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.

Specs & Features

• 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 40 Series
  
• Outlet Diameter (in): 2.5
  
• Product Typ:e Exhaust System
  
• Single Dual: Dual
  
• Sound Level: Moderate
  
• System Type: Cat-back
  
• Tip Diameter (in): 3
  
• Tip Quantity: 2
  
• Tubing Diameter (in): 2.5
  
• UPC: 700042017683
  
• California Proposition 65 Chemical Name: Chromium (hexavalent compounds) / Nickel (Metallic)
  
• California Proposition 65 Required: Yes
  
• Part Number: 17312

Product Description

For the person who is looking for a complete Flowmaster cat-back dual exhaust system with an aggressive tone. With easy fit in mind, this American Thunder® exhaust system features mandrel-bent 2.50-inch aluminized steel tubing for maximum performance and includes a pair of specially selected Super 40® Series performance mufflers for a deep powerful sound. The custom tailpipes feature added clearance and exit in the factory location with large 3.00-inch polished tips. The system uses the factory hanger locations for an easy install and delivers a moderate to aggressive interior and exterior tone, best suited to the enthusiast who wants their performance to be heard. Like all Flowmaster systems, the benefits include improved throttle response, power and mileage and are designed for an easy fit. The system includes all necessary parts, hardware and instructions for an easy installation you can do at home. Covered by our 3-year Limited Warranty. If you prefer a full stainless steel system covered by our Lifetime Limited Warranty, check out our cat-back exhaust system #817312.

Features:

• Includes Hangers and Hardware for an Easy Installation
• Large 3.00-inch Polished Stainless Steel Tips
• Dyno Tuned for Maximum Performance
• Super 40 Series Performance Mufflers
• Over 35+years of Flowmaster Quality
• Uses the Factory Hanger Locations
• Moderate Exterior Exhaust Tone
• Easy Installation

Redline360 is an authorized Flowmaster dealer and sells only genuine Flowmaster products.