Description
Overview
The Flowmaster Force II Cat-back Exhaust System is engineered for owners of 2005-2007 Ford F-250 and F-350 trucks who want a moderate exterior sound level paired with a mild interior tone — all backed by the performance gains Flowmaster is known for. This emissions-legal, bolt-on system fits trucks equipped with either a V8 or V10 engine, making it a versatile upgrade for daily drivers and heavy haulers alike.
At the heart of the system is the 70 Series Big Block II performance muffler (part #53073), which exits into a large single 3.00-inch mandrel-bent tailpipe for maximum flow and a controlled, refined sound. The complete system is constructed from aluminized steel with mandrel bends throughout, and it’s finished with a large 3.50-inch polished stainless steel tip for a clean, aggressive look at the rear of the truck.
Key Benefits
Like every Flowmaster cat-back, the Force II is designed to deliver real performance advantages, including improved throttle response, added power, and better mileage. Its moderate-yet-mild character makes it especially well suited to towing applications, where you want authority under load without a droning cabin at cruise.
- Force II single cat-back system for 2005-2007 Ford F-250/F-350
- Fits V8 or V10 engines, 2WD and 4WD, and all wheelbases
- 70 Series Big Block II performance muffler (part #53073) included
- Aluminized steel, mandrel-bent construction for smooth flow
- Large single 3.00-inch tailpipe finished with a 3.50-inch polished stainless steel tip
- CARB (California) compliant and emissions legal (Emission Code 5)
Sound & Performance
The moderate exterior sound level gives your truck a purposeful presence, while the mild interior tone keeps highway miles comfortable. That balance is exactly why this configuration is a favorite for those who tow, but it still delivers the throttle response and efficiency gains you’d expect from a Flowmaster upgrade.
Installation & Fitment
Designed for an easy fit, the Force II includes all necessary parts and hardware for a straightforward bolt-on installation you can complete at home. It fits both 2WD and 4WD trucks and all wheelbases within the 2005-2007 F-250/F-350 range. A heat shield is not included with this system.
The Force II is covered by a 3-year Limited Warranty. If you prefer a full stainless steel exhaust covered by a Lifetime Limited Warranty, consider part #817422 instead. Please note the California Proposition 65 warning applies to this product.












