Exhaust› Exhaust Pipes, Systems and Components

Flowmaster

Outlaw Cat-Back Exhaust System Fits 2020-2026 Silverado/Sierra 2500Hd/3500Hd 6.6L Gas V8, Outlaw Series, 3.50 Inch To Dual 3.00 Inch Cat-Back, Dual Rear Exit, Stainless Steel Exhaust System Flowmaster

$1,138.29

SKU: F00L 818112

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 Outlaw Series Cat-Back Exhaust System (MPN 818112) is designed for 2020-2023 Chevy Silverado and GMC Sierra 2500HD/3500HD trucks with the 6.6L gas engine, Crew Cab, Standard Bed (6.5 ft.), and 159-inch wheelbase. It features a stainless steel Outlaw series muffler, dual 3.00-inch 409 stainless steel mandrel-bent tailpipes with polished 4.00-inch tips, delivering an aggressive sound and claiming up to 9 hp and 9 lb.ft. increases. It is a bolt-on, emissions-legal system with a Lifetime Limited Warranty.

Fitment

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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

BrandFlowmaster
Part NumberF00L 818112

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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