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Exhaust Exhaust Pipes, Systems and Components

Flowmaster

American Thunder Cat-Back Exhaust System Fits 2021-2025 Ford F-150 2.7L, 3.5L, 5.0L. American Thunder, Cat-Back, Dual Exit Stainless Steel Exhaust System Flowmaster

$1,153.95 $1,138.29 Save $15.66

SKU: F00L 817979

In Stock
In Stock
Ships by Jun 11
Free Shipping
Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Description

This Flowmaster American Thunder Dual Exhaust System is a stainless steel Cat Back exhaust system designed for the Ford F-150. It utilizes a Super 40 series muffler, delivering a deep, aggressive sound and enhanced performance. The system features mandrel-bent 409 stainless steel tubing, with a 3.0-inch inlet pipe and dual 2.5-inch tailpipes, offering both side exit and rear exit options. It includes 3.5-inch polished stainless steel tips and all necessary hardware for an easy installation using factory-mounting locations. This exhaust system is backed by Flowmaster's Lifetime Limited Warranty.

Fitment

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Specifications

BrandFlowmaster
Part NumberF00L 817979

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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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