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Exhaust Exhaust Pipes, Systems and Components

Flowmaster

American Thunder Cat-Back Exhaust System Fits 2019-2026 Chevrolet/Gmc Silverado/Sierra 2.7-Liter, Cat-Back, Dual Out Rear/Side Exit, Stainless Steel Exhaust System Flowmaster

$1,462.95 $1,459.39 Save $3.56

SKU: F00L 818113

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 818113 American Thunder Cat-Back Exhaust System is constructed from durable 409 stainless steel with dual 2.50-inch mandrel-bent pipes for improved exhaust flow. It features an American Thunder muffler for moderate sound and maximum performance, with dual 3.50-inch polished tips exiting dual out the rear or dual out the side. It utilizes existing factory hanger locations for easy installation and is backed by Flowmaster's Lifetime Limited Warranty.

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.

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Specifications

BrandFlowmaster
Part NumberF00L 818113

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.

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