Skip to product information
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 stainless steel tubing for maximum performance and includes a pair of specially selected Super 40® Series performance mufflers. 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.
Flowmaster American Thunder Cat-back Exhaust System - 817312
$1,049.95
Features:
- Includes Hangers and Hardware for an Easy Installation
- Mandrel-bent 16 Gauge Stainless Steel Tubing
- 3.00-inch Polished 304 Stainless Steel Tips
- Dyno Tuned for Maximum Performance
- Super 40 Series Performance Mufflers
- Uses the Factory Hanger Locations
- Moderate Exterior Exhaust Tone
- Lifetime Limited Warranty
Product Specifications:
- Product Details: 1999-2004 Ford Mustang GT, MACH1 and Bullitt with 4.6L SOHC engine, Stainless Steel - Aggressive to moderate sound
- California Proposition 65: Yes
- California Proposition 65 Chemical Name: Chromium (hexavalent compounds), Nickel (Metallic)
- CARB (California) Compliant: Yes
- Catalytic Converter Included: No
- Catalytic Converter Quantity: 0
- Clamping Type: Flat Band
- Clamps Included: Yes
- Drive: 2WD
- Exhaust Series: American Thunder
- Exhaust Tip Color: Silver
- Exhaust Tip Connection: Welded
- Exhaust Tip Cut: Angled
- Exhaust Tip Diameter: 3.00 IN
- Exhaust Tip Edge: Slash Cut
- Exhaust Tip Finish: Polished
- Exhaust Tip Intercooled: No
- Exhaust Tip Length: 12.875 IN
- Exhaust Tip Material: 304 Stainless Steel
- Exhaust Tip Quantity: 2
- Exhaust Tip Resonated: No
- Exhaust Tip Shape: Round
- Exhaust Tip Wall: Single Wall
- Exit Style: Dual Out Rear
- Finish: Natural
- Gasket Or Seal Included: No
- Grade Type: Performance
- Hangers Included: Yes
- Heat Shield Included: No
- Inlet Diameter: 2.50 IN
- Inlet Type: Flanged
- Main Piping Diameter: 2.50 IN
- Mounting Bracket Included: No
- Muffler (Left) Body Height: 5.00 IN
- Muffler (Left) Body Length: 13.50 IN
- Muffler (Left) Body Width: 10.00 IN
- Muffler (Left) Type: Chambered
- Muffler (Right) Body Height: 5.00 IN
- Muffler (Right) Body Length: 13.50 IN
- Muffler (Right) Body Width: 10.00 IN
- Muffler (Right) Type: Chambered
- Muffler Body Height: 5.00 IN
- Muffler Body Length: 13.50 IN
- Muffler Body Material: 409 Stainless Steel
- Muffler Body Shape: Oval
- Muffler Body Width: 10.00 IN
- Muffler Finish: Black High-Temperature Paint Finish
- Muffler Flanged Inlet: Yes
- Muffler Flanged Outlet: No
- Muffler Included: Yes
- Muffler Inlet Connection: Loose Flange
- Muffler Inlet Inside Diameter: 2.50 IN
- Muffler Inlet Outside Diameter: 2.63 IN
- Muffler Outlet Connection: Slip-Fit
- Muffler Outlet Quantity: 1
- Muffler Part Number: Kit Only
- Muffler Quantity: 2
- Muffler Series: Super 40 Series
- Muffler Type: Chambered
- Part Type: Exhaust System
- Pipe Color: Silver
- Pipe Material: 409 Stainless Steel
- Product Type: Exhaust System
- Sound Level: Aggressive / Moderate
- Spring Bolt Kit Included: No
- Tail Pipe Outlet Outside Diameter: 2.50 IN
- Tail Pipe Quantity: 2, Dual
- Tail Pipe Tapered Outlet: No
- Type: Cat-Back
- Valve Included: No
- Valve Type: Not Applicable
Installation Notes:
"Fits 1999-2004 Ford Mustang GT, MACH1 and Bullitt with 4.6L SOHC engine.