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Flowmaster 87-93 Mustang 5.0L LX & 86 GT American Thunder Cat-Back Exhaust System

Our American Thunder® exhaust system for 1987-1993 Ford Mustang LX with 5.0L 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 to complement that iconic deep and powerful Fox body 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. Note: Fits coupes and convertibles. Also fits 1986 Ford Mustang GT models with 5.0L engine. 1987-1993 Ford Mustang LX with 5.0L engine. Fits coupes and convertibles. Also fits 1986 Mustang GT with 5.0L - Aggressive sound Fits 1987-1993 Ford Mustang LX with 5.0L engine. Fits coupes and convertibles. Also fits 1986 Mustang GT with 5.0L
  • Includes Hangers and Hardware for Easy Installation
  • Mandrel-bent 16-Gauge Aluminized Tubing
  • Aggressive Sound Exterior Exhaust Tone
  • Super 44 Series Performance Mufflers
  • Dyno Tuned for Maximum Performance
  • Uses the Factory Hanger Locations
  • 304 Stainless Steel Tailpipes
  • 3-Year Limited Warranty
  • Easy Installation

Upgrade the sound and performance of your Fox body Mustang with the Flowmaster 17213 American Thunder cat-back exhaust system. Designed for 1987-1993 Ford Mustang LX models equipped with the 5.0L engine, this emissions-legal system also fits 1986 Ford Mustang GT models with the 5.0L engine. It is compatible with both coupe and convertible body styles and delivers the aggressive exterior exhaust tone associated with Flowmaster’s American Thunder series.
The system uses free-flowing, mandrel-bent aluminized steel inlet tubing and tailpipes to promote consistent exhaust flow and durable performance. A pair of Flowmaster Super 44 Series mufflers provides a deep, powerful sound, while the polished 304 stainless steel tailpipes add a clean, performance-oriented appearance. The exhaust is dyno tuned for maximum performance and is engineered to use the vehicle’s factory hanger locations for a straightforward bolt-on installation.
Flowmaster 17213 includes the necessary hangers, hardware, and installation instructions to help simplify the installation process. Its direct-fit design makes it an excellent choice for restorations, street-driven performance vehicles, and enthusiasts seeking a more aggressive exhaust character without extensive modifications. This system is backed by a 3-year limited warranty. Carburetor-related approval requirements may apply; verify vehicle and emissions compatibility before installation.

Features:

  • Vehicle Fitment: Fits 1987-1993 Ford Mustang LX models with the 5.0L engine and 1986 Ford Mustang GT models with the 5.0L engine
  • Body Style Compatibility: Designed for Mustang coupe and convertible models
  • Exhaust Type: Bolt-on cat-back exhaust system with an aggressive exterior exhaust tone
  • Mufflers: Includes Flowmaster Super 44 Series performance mufflers
  • Tubing: Mandrel-bent 16-gauge aluminized steel tubing for consistent exhaust flow and durability
  • Tailpipes: 304 stainless steel tailpipes with a polished performance appearance
  • Installation: Uses factory hanger locations and includes hangers, hardware, and installation instructions
  • Performance: Dyno tuned for maximum performance
  • Warranty: Backed by a 3-year limited warranty

Fitment:
Ford Mustang GT 1986
Ford Mustang LX 1986
Ford Mustang LX 1987
Ford Mustang LX 1988
Ford Mustang LX 1989
Ford Mustang LX 1990
Ford Mustang LX 1991
Ford Mustang LX 1992
Ford Mustang LX 1993