Sale

Exhaust Exhaust Pipes, Systems and Components

Flowmaster

21C F150 AMERICAN THUNDER CATBACK EXHAUST 4.5IN TIP 3IN X 3IN DUAL CENTER 409SS

$1,153.95 $1,138.29 Save $15.66

SKU: F00L 818169

In Stock
In Stock
Ships by Jun 18
Free Shipping
Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Description

The Flowmaster American Thunder Cat-Back Exhaust System (part number 818169) fits 2021-2026 Ford F-150 models with 2.7L EcoBoost, 3.5L EcoBoost, 5.0L, and 3.5L PowerBoost Hybrid engines. It is designed for models with factory dual exhaust, excluding Raptor variants, and is compatible with all standard bed lengths (5'7", 6'7", 8').

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 818169

Videos

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.

View Full Return Policy