Exhaust› Exhaust Pipes, Systems and Components

Flowmaster

American Thunder Cat-Back Exhaust System 2009-2014 Ford F-150 With 4.6L, 5.0L Or 5.4L Engines Fits All Wheelbases Aggressive To Moderate Sound Flowmaster

$1,346.06

SKU: F00L 817567

In Stock
In Stock
Ships by Jun 7
Free Shipping
Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Description

The Flowmaster 817567 American Thunder Cat-Back Exhaust System is made from stainless steel and features Super 40 Series mufflers for an aggressive sound. It is designed for specific vehicle applications and aims to improve exhaust flow and performance.

Fitment

Fitment Guaranteed

Don’t gamble
on fit.

Log your build in the MOTORMIA app and we’ll guarantee this part fits your exact setup — or your money back, return shipping covered.

Available on iOS & Android

Specifications

BrandFlowmaster
Part NumberF00L 817567

Videos

Ford F-150 Truck Flowmaster Exhaust Upgrade Install and Sound Comparison. DIY

Ford F-150 Truck Flowmaster Exhaust Upgrade Install and Sound Comparison. DIY
2011-2014 F-150 5.0L Flowmaster American Thunder Catback Install

2011-2014 F-150 5.0L Flowmaster American Thunder Catback Install

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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