Description
Overview
The Flowmaster Force II® Cat-back Exhaust System is engineered for the driver who wants a deep, aggressive exterior sound paired with a moderate interior tone — all backed by the performance benefits you expect from Flowmaster®. Designed as a complete bolt-on upgrade for the 2004-2008 Ford F-150 and Lincoln Mark LT with the 4.6L or 5.4L engine, this system replaces the restrictive factory piping with free-flowing, mandrel-bent tubing that helps your truck breathe better while delivering a purposeful, muscular note.
At the heart of the system is the acclaimed Super 50â„¢ Series performance muffler (part number 530552), which produces a mild, refined sound level that stays comfortable inside the cab without giving up the aggressive character truck owners love. The 3.00-inch inlet feeds a dual tailpipe layout that exits with a pair of large 3.00-inch polished stainless steel tips for a finished, high-end appearance.
Key Benefits
Built from durable 16-gauge mandrel-bent aluminized steel, the Force II system is designed for long-lasting corrosion resistance and consistent flow. It ships as a DOR/DOS (Dual Out Rear or Dual Out Side) configuration, giving you the flexibility to route the exhaust behind the rear wheels — ideal for towing — or straight out the back beneath the rear bumper for a bold, muscular look.
- Super 50â„¢ Series performance muffler (P/N 530552) for a deep exterior tone with a mild, moderate interior sound
- 16-gauge mandrel-bent aluminized steel tubing with dual 2.50-inch aluminized steel tailpipes
- 3.00-inch inlet diameter feeding a dual tailpipe design
- Large 3.00-inch polished stainless steel exhaust tips
- DOR/DOS routing: exit behind the rear wheels for towing or straight out the back for style
- CARB (California) compliant — emissions-legal, Emission Code 5
Easy Bolt-On Installation
This is a true bolt-on cat-back system that uses the factory hanger locations, making it a straightforward install you can complete at home. Everything you need arrives together, including all necessary parts and hardware. No heat shield is included with this system.
Fitment
Engineered specifically for the 2004-2008 Ford F-150 and Lincoln Mark LT equipped with the 4.6L or 5.4L engine. It fits both 2-wheel drive and 4-wheel drive models across all wheelbases, so you can dial in the right setup for your truck. Choose the exit configuration that best matches how you drive — whether you prioritize towing clearance or a rear-exit appearance.
The Flowmaster Force II Cat-back Exhaust System is covered by a 3-Year Limited Warranty. Please note the California Proposition 65 warning applies to this product.











