Exhaust› Exhaust Pipes, Systems and Components
Flowmaster
21C F150 AMERICAN THUNDER CATBACK EXHAUST 4.5IN TIP 3IN X 3IN DUAL CENTER 409SS
SKU: F00L 818169
Moderate — 2–4 hours
Description
Fitment
Fitment Guaranteed
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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
| Brand | Flowmaster |
| Part Number | F00L 818169 |
Videos
2021-2022 Ford F- 150 2.7L, 3.5L and 5.0L - American Thunder Cat-Back Exhaust System - 817979
Flowmaster American Thunder Exhaust Installation for 67-72 C10 Trucks
Squarebody Chevy Dual Exhaust Installation and Test Drive - Flowmaster American Thunder
How to Install Flowmaster American Thunder Exhaust System on a 2019 Chevy/GMC 1500
Flowmaster American Thunder Exhaust Reviews: AutoAnything Product Demo
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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