Description
Overview
The Flowmaster Force II Cat-back Exhaust System is a bolt-on, emissions-legal upgrade engineered specifically for the 1987-1993 Ford Mustang LX and the 1986 Mustang GT equipped with the legendary 5.0L engine. Designed as a complete cat-back package, it replaces the restrictive factory piping from the catalytic converter back with a free-flowing, mandrel-bent system that lets your Fox body breathe the way it was always meant to.
At the heart of this system are free-flowing 2.50-inch aluminized steel mandrel-bent inlet pipes and matching aluminized steel tailpipes. The smooth mandrel bends preserve pipe diameter through every curve, promoting efficient flow, while the dual tailpipe configuration delivers the balanced, muscular presence a 5.0L Mustang deserves.
Sound & Performance
Flowmaster completes the Force II with a pair of its acclaimed 50 Series Delta Flow mufflers, tuned to deliver a moderate sound level that complements the iconic deep and powerful tone of the Fox body 5.0L. It is aggressive without being obnoxious — refined enough for daily driving, yet unmistakably Mustang when you get on the throttle. The system is finished with long 2.50-inch polished 304 stainless steel exhaust tips that measure 25 inches, adding a genuine show-car look to the rear of your car.
Easy, Bolt-On Installation
This is a true bolt-on system that uses the factory hanger locations, making installation quick and straightforward. It comes complete with all necessary hardware and easy-to-follow instructions, so you can restore lost flow and dial in the sound of your Mustang without cutting or fabricating custom pipe.
Key Highlights
- Complete Force II cat-back system for the 5.0L Fox body Mustang
- 2.50-inch aluminized steel mandrel-bent inlet pipes and aluminized steel tailpipes
- Pair of 50 Series Delta Flow mufflers for a moderate, deep exhaust note
- Dual long 2.50-inch polished 304 stainless steel tips (25-inch length) for a finished, show-car appearance
- Uses factory hanger locations — includes all hardware and instructions
- Emissions legal and CARB (California) compliant
Fitment
This Force II cat-back is engineered for 1987-1993 Ford Mustang LX models and 1986 Ford Mustang GT models equipped with the 5.0L engine, and fits both coupes and convertibles. It is configured for 2WD applications. Please note this system carries a California Proposition 65 warning.
Whether you’re reviving a weekend cruiser or building a Fox body that turns heads at every stop light, the Flowmaster Force II delivers the flow, the sound, and the stainless-tipped style that make the 5.0L Mustang legendary. Bolt it on and let your engine speak with authority.
