Exhaust› Exhaust Pipes, Systems and Components

Flowmaster

Flow Fx Cat-Back Exhaust System Fits 1999-2007 (Classic Body) GM 1500 4.3L, 4.8L, 5.3L With 143.5 Inch Wheelbase, Single Exit Aggressive To Moderate Sound Flowmaster

$883.28

SKU: F00L 717873

In Stock
In Stock
Ships by Jun 7
Free Shipping
Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Easy — 1–2 hours

Description

The Flowmaster FlowFX Cat Back exhaust system, MPN 717873, is constructed from durable 409 stainless steel with 16-gauge mandrel-bent tubing and a 4.50-inch black ceramic-coated 304 stainless steel tip, designed for 1999-2007 Classic Body GM Silverado/Sierra 1500 trucks with 4.3L, 4.8L, or 5.3L engines.

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 717873

Videos

1999-07* GM Silverado/Sierra 1500 trucks 4.3L, 4.8L & 5.3L - FlowFX Cat-back Exhaust - 717873

1999-07* GM Silverado/Sierra 1500 trucks 4.3L, 4.8L & 5.3L - FlowFX Cat-back Exhaust - 717873

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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