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Exhaust› Exhaust Pipes, Systems and Components

Flowmaster

20-25 GM 2500/3500HD, 6.6L, CB, FFX, SOS

$806.95 $716.95 Save $90.00

SKU: F00L 717927

In Stock
In Stock
Ships by Jun 10
Free Shipping
Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Description

Flowmaster's FlowFX Cat-Back exhaust system for the 2020-2026 GM 2500HD and 3500HD trucks with the 6.6L gas engines allows you to customize your GM truck. This performance exhaust system fits both 2/4 Wheel drive models and is manufactured from 409 stainless steel for durability. Features include a 3.50-inch inlet pipe leading into a 409 stainless steel FlowFX series 'straight-through' muffler for great sound and maximum performance with no drone. The muffler connects to the factory tailpipe for a simple and effective performance upgrade.

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 717927

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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