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Exhaust Exhaust Pipes, Systems and Components

Flowmaster

Outlaw Extreme Cat-Back Exhaust System Fits 2019-2026 (2019 New Body) Silverado/Sierra 1500 5.3L, Outlaw Extreme High Clearance 3.0 Inch Cat-Back Stainless Steel Exhaust System Flowmaster

$449.95 $415.95 Save $34.00

SKU: F00L 817965

In Stock
In Stock
Ships by Sep 13
Free Shipping over $200
$100 Minimum Order
Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Easy — 1–2 hours

Overview

The Flowmaster 817965 is an Outlaw Extreme Single Exhaust System (Cat-Back System) with a turn-down exit, designed for aggressive sound. It is made of TIG-welded stainless steel with 3.00-inch tubing. It has no tips.
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Part #: 817965

Flowmaster introduces our Outlaw Extreme stainless steel cat-back exhaust system for the 2019*-2026 (*2019 New Body Only) Chevrolet/GMC Silverado/Sierra 1500 with the 5.3L engine. This system uses an Outlaw series muffler for a deep powerful sound and increased performance.3.0-inch mandrel bent 409 stainless steel tubing allows for maximum exhaust flow and durability. The system has a turndown style, dump exit right after the muffler to eliminate the over-axle tailpipe. This elimination of the tailpipe helps improve ground clearance and departure angle when you are driving in more extreme off-road situations. This system produced max dyno gains of 15 hp and 20 lb.ft. at the rear wheels. All of the necessary hardware is included, and factory-mounting locations are used for an easy installation. Backed by Flowmaster's Lifetime Limited Warranty.Outlaw Series Performance Muffler Offers a Deep Powerful Sound and Increased Performance409 Stainless Steel Construction Delivers Extra Durability and Improved Long-Term Corrosion ResistanceMax Dyno Gains of 15 hp and 20 lb.ft. at the Rear Wheels3.0-inch 16-gauge Mandrel Bent Stainless Steel Tubing Helps Maintain Maximum Exhaust Flow for Better PowerIncludes all Necessary Hardware for an at Home InstallationDump Style Exit Allows for Better Ground Clearance When in Extreme Off-Road ConditionsUses Factory Hanger Locations for Easy InstallationLifetime Limited Warranty

Features:

  • Outlaw Series Performance Muffler Offers a Deep Powerful Sound and Increased Performance
  • Outlaw Series Performance Muffler Offers A Deep Powerful Sound And Increased Performance
  • 409 Stainless Steel Construction Delivers Extra Durability and Improved Long-Term Corrosion Resistance
  • 409 Stainless Steel Construction Delivers Extra Durability And Improved Long-Term Corrosion Resistance
  • Max Dyno Gains of 15 hp and 20 lb.ft. at the Rear Wheels
  • Max Dyno Gains Of 6 Hp And 9 Lb/Ft At The Rear Wheels
  • 3.0-inch 16-gauge Mandrel Bent Stainless Steel Tubing Helps Maintain Maximum Exhaust Flow for Better Power
  • 3.0-Inch 16-Gauge Mandrel Bent Stainless Steel Tubing Helps Maintain Maximum Exhaust Flow For Better Power
  • Includes all Necessary Hardware for an at Home Installation
  • Includes All Necessary Hardware For An At Home Installation
  • Dump Style Exit Allows for Better Ground Clearance When in Extreme Off-Road Conditions
  • Dump Style Exit Allows For Better Ground Clearance When In Extreme Off-Road Conditions
  • Uses Factory Hanger Locations for Easy Installation
  • Uses Factory Hanger Locations For Easy Installation
  • Lifetime Limited Warranty
  • Lifetime Limited Warranty

Outlaw Extreme Cat Back Exhaust System | Dump Style Exit | Incl. 3 in. Tubing/Outlaw Muffler | 409 Stainless Steel | Incl. Installation Hardware

This product may expose you to chemicals known to the State of California to cause cancer, birth defects, or other reproductive harm.

Product descriptions are provided by our supplier partners and may not always be perfectly accurate. Not sure this fits? or call (760) 282-4645 and we’ll verify before you order.

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Specifications

BrandFlowmaster
Part NumberF00L 817965

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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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Orders are processed in 1–3 business days. In stock parts ship promptly from our partner network. Special-order items either aren’t currently stocked or are built to your spec — expect 4–6 weeks. If a part goes on backorder while your order is in the queue, we’ll reach out and work through discounted alternatives together.

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