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Flowmaster
American Thunder Cat-Back Exhaust System Fits 2009-2014 Ford F-150 With 4.6L, 5.0L Or 5.4L Engine, Stainless Steel Aggressive To Moderate Sound Flowmaster
SKU: F00L 817522
Moderate — 2–4 hours
Description
Part #: 817522
Our American Thunder cat-back exhaust system for 2009-2014 Ford F-150 trucks is perfect for the person looking for a moderately aggressive sound levels both inside and outside of the truck with all of the performance benefits that you would expect from Flowmaster. This bolt-on DOR/DOS (dual out rear or dual out the side tailpipe exits) is emissions legal and fits trucks with the 4.6L, 5.0L and 5.4L engines. Features include all stainless steel mandrel-bent construction, a Super 40 Series muffler exiting into dual 2.50-inch mandrel-bent tailpipes for maximum performance and sound. The exhaust features large 3.50-inch polished stainless steel tips and the system is covered by our Lifetime Limited Warranty. Designed for an easy fit, this system includes all necessary parts and hardware for easy installation you can do at home. Note: Fits 2/4 wheel drive and all wheelbases.
Features:
- Mandrel Bent 16ga 409 Stainless Tubing
- Mandrel bent 16 gauge stainless steel tubing
- Includes Hangers And Hardware For Easy Installation
- Moderate Sound exterior exhaust tone
- Dyno Tuned for Maximum Performance
- Includes hangers and hardware for easy installation
- Premium Flowmaster Quality
- Connects After Factory Catalytic Converter
- 3 Year Limited Warranty
- Made in the USA
American Thunder Cat Back Exhaust System | Single | Dual Rear Same Side Exit | Incl. 2.5 in. Tubing/Super 40 Series (TM) Muffler/3 in. Logo Stainless Tips | 409 Stainless Steel
This product may expose you to chemicals known to the State of California to cause cancer, birth defects, or other reproductive harm.
MIA's Description
Flowmaster’s American Thunder Exhaust Systems aren’t only focused on producing a respectable exhaust note, though it’s certainly a driving force. Flowmaster packs dyno-proven performance in every American Thunder Exhaust System, featuring large-diameter mandrel-bent piping, high-flow mufflers, and minimal restriction. The result? More power!
American Thunder Exhaust Systems are offered in your choice of durable aluminized steel or premium stainless steel, providing exceptional corrosion resistance in either configuration.
Most systems require zero welding for a simple, bolt-on installation that can be performed in any driveway with standard hand tools. All American Thunder Exhaust Systems come with vehicle-specific tubing, mufflers, clamps, hangers, exhaust tips, and all hardware, making for a straightforward installation.
Fitment
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Specifications
| Brand | Flowmaster |
| Part Number | F00L 817522 |
Buy with Confidence
Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.
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