MENU
817312 - Flowmaster American Thunder Cat-back Exhaust System - default Image
817312 - Flowmaster American Thunder Cat-back Exhaust System - additional Image
817312 - Flowmaster American Thunder Cat-back Exhaust System - additional Image
817312 - Flowmaster American Thunder Cat-back Exhaust System - additional Image
1999-04 Mustang GT 4.6L - American Thunder Cat-Back Exhaust SystemYouTube Button

Flowmaster American Thunder Cat-back Exhaust System

1999-2004 Ford Mustang GT, MACH1 and Bullitt with 4.6L SOHC engine. Does Not fit Cobra.

PART# 817312

Be the first to write a review
$666.95   Suggested Retail
$599.95   Your Price
Free Shipping
In Stock  
Qty: 
Add to Wish List

Starting at $53 a month with Learn More
Fits 1999-2004 Ford Mustang GT, MACH1 and Bullitt with 4.6L SOHC engine. Does Not fit Cobra.

Overview

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.

Features:

  • Includes Hangers and Hardware for an Easy Installation
  • Mandrel-bent 16 Gauge Stainless Steel Tubing
  • Dyno Tuned for Maximum Performance
  • Super 40 Series Performance Mufflers
  • Uses the Factory Hanger Locations
  • Moderate Exterior Exhaust Tone
  • Lifetime Limited Warranty

Specs

2WD/4WD2WD
BrandFlowmaster
California Proposition 65 Chemical NameChromium (hexavalent compounds)
Nickel (Metallic)
California Proposition 65 RequiredYes
Emission Code5
Exhaust SeriesAmerican Thunder
Exit PositionDual Rear Exit
Heat ShieldNo
Inlet Diameter (in)2.5
MaterialStainless Steel
Muffler Part NumberKit Only
Muffler Quantity2
Muffler SeriesSuper 40 Series
Outlet Diameter (in)2.5
Product TypeExhaust Systems / Kits
Single DualDual
Sound LevelModerate Sound
System TypeCat-back System
Tip Diameter (in)3
Tip Quantity2
Tubing Diameter (in)2.5
Part Number817312

Emissions

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

Fits 1999-2004 Ford Mustang GT, MACH1 and Bullitt with 4.6L SOHC engine. Does Not fit Cobra.

Applications

We Suggest
    Reviews

      *Free Shipping & Handling only offered to the contiguous US on orders over $100, excludes clearance parts and oversized packages.

      Some parts are not legal for use in California or other states with similar regulations.

       X  Ford 347 Giveaway
       X  Ford 347 Giveaway