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Flowmaster

Flowmaster 817854 Outlaw Cat-back Exhaust System

Flowmaster 817854 Outlaw Cat-back Exhaust System

Regular price $1,249.95 USD
Regular price Sale price $1,249.95 USD
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10 in stock

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Description & Features

Flowmaster 817854 Outlaw Cat-back Exhaust System

This Flowmaster® Outlaw® Cat-back exhaust system is perfect for the person looking for maximum sound levels both inside and outside the vehicle and are not afraid of getting peoples attention. This emissions-legal system is for the 2019 (new body style) to 2026 GM Silverado/Sierra 1500 trucks with 5.3L engine and features a stainless steel Super 10™ Series muffler, all mandrel-bent 3.00-inch stainless steel tubing and uses the factory hanger locations for an easy installation. The large dual 3.00-inch stainless tailpipes ensure maximum power and a deep powerful sound. This bolt-on system comes with your choice of tailpipe exits, either dual out the rear, or dual out the sides behind the rear wheels which prevents blowing exhaust on your boat or trailer when towing. The system is finished off with a pair of large 4.00-inch double wall black ceramic coated stainless tips for a custom look. Designed for a perfect-fit, the system includes installation instructions and all the necessary hardware for an easy at home installation. Maximum dyno gains of 10 hp and 13 lb.ft. at the rear wheels. Notes: Fits Crew Cab and Double Cab models with factory single tailpipe only.

  • Large 4.00-inch Black Ceramic Coated Stainless Tips
  • Deep Powerful Tone Inside and Outside the Vehicle
  • Max Dyno Gains of 10 hp and 13 lb.ft. of Torque
  • Mandrel-bent 3.00-inch Dual Tailpipes
  • Uses the Factory Hanger Locations
  • Full Stainless Steel Construction
  • Lifetime Limited Warranty
  • Easy at Home Installation
Specifications
Brand Flowmaster
California Proposition 65 Yes
California Proposition 65 Chemical Name Chromium (hexavalent compounds)
CARB (California) Compliant Yes
Catalytic Converter Included No
Catalytic Converter Quantity 0
Category Exhaust
Clamping Type Flat Band
Clamps Included Yes
Emission Code 5
Exhaust Series Outlaw
Exhaust Tip Color Black
Exhaust Tip Connection Clamp-On
Exhaust Tip Cut Angled
Exhaust Tip Diameter 4.00
Exhaust Tip Edge Angle Cut
Exhaust Tip Finish Black Ceramic Coating
Exhaust Tip Intercooled No
Exhaust Tip Length 13.00
Exhaust Tip Material 304 Stainless Steel
Exhaust Tip Quantity 2
Exhaust Tip Resonated No
Exhaust Tip Shape Round
Exhaust Tip Wall Double Wall
Exit Style Dual Out Rear
Finish Natural
Gasket Or Seal Included No
Grade Type Performance
Hangers Included Yes
Heat Shield Included No
Inlet Type Clamp-On
Main Piping Diameter 3.00
Mount Type Uses Factory Hangers
Mounting Bracket Included Yes
Muffler Body Height 4.00
Muffler Body Length 6.50
Muffler Body Material 409 Stainless Steel
Muffler Body Shape Oval
Muffler Body Width 9.50
Muffler Color Black
Muffler Finish Black High-Temperature Paint Finish
Muffler Flanged Inlet No
Muffler Flanged Outlet No
Muffler Included Yes
Muffler Inlet Connection Slip-Fit
Muffler Inlet Inside Diameter 3.00
Muffler Inlet Location Center
Muffler Inlet Outside Diameter 3.13
Muffler Outlet Connection Slip-Fit
Muffler Outlet Diameter 3.00
Muffler Outlet Location Dual
Muffler Outlet Quantity 2
Muffler Overall Length 12.00
Muffler Part Number Kit Only
Muffler Quantity 1
Muffler Series 10 Series
Muffler Type Chambered
part type Exhaust System
Pipe Color Silver
Pipe Material 409 Stainless Steel
Product Type Exhaust System
Sound Level Aggressive
Spring Bolt Kit Included No
Sub Category Exhaust and Tail Pipes
Tail Pipe Outlet Outside Diameter 3.00
Tail Pipe Quantity Dual
Tail Pipe Tapered Outlet No
Tip Logo Embossed
Type Cat-Back
Valve Included No
Valve Type Not Applicable
Warning California Proposition 65
Packaging Information

Weight: 64 lbs
Dimensions: 58.5 x 16.25 x 11.25 IN

Safety

⚠ WARNING: This product can expose you to chemicals known to the State of California to cause cancer, birth defects, or other reproductive harm. For more information visit www.P65Warnings.ca.gov

Warranty

View Warranty (PDF)

Installation Instructions

View Installation Instructions (PDF)

⚠ Fitment Notes
  • Black Ceramic Tip Finish, Fits crew and double cab models
  • Does Not Fit Crew Cab 2WD with 2 Pc Driveshaft or trucks with factory dual exhaust tailpipes.

Vehicle Fitment

  • 2019-2021 Chevrolet Silverado 1500 Custom
  • 2019-2026 Chevrolet Silverado 1500 Custom Trail Boss
  • 2019-2026 Chevrolet Silverado 1500 High Country
  • 2019-2026 Chevrolet Silverado 1500 LT
  • 2019-2026 Chevrolet Silverado 1500 LT Trail Boss
  • 2022 Chevrolet Silverado 1500 LTD High Country
  • 2022 Chevrolet Silverado 1500 LTD LT
  • 2022 Chevrolet Silverado 1500 LTD LT Trail Boss
  • 2022 Chevrolet Silverado 1500 LTD LTZ
  • 2022 Chevrolet Silverado 1500 LTD RST
  • 2022 Chevrolet Silverado 1500 LTD SSV
  • 2022 Chevrolet Silverado 1500 LTD WT
  • 2019-2026 Chevrolet Silverado 1500 LTZ
  • 2023-2026 Chevrolet Silverado 1500 PPV
  • 2019-2026 Chevrolet Silverado 1500 RST
  • 2019-2021 Chevrolet Silverado 1500 SSV
  • 2019-2026 Chevrolet Silverado 1500 WT
  • 2019-2021 GMC Sierra 1500 AT4
  • 2019-2021 GMC Sierra 1500 Base
  • 2019-2026 GMC Sierra 1500 Denali
  • 2019-2026 GMC Sierra 1500 Elevation
  • 2022 GMC Sierra 1500 Limited Denali
  • 2022 GMC Sierra 1500 Limited Elevation
  • 2022 GMC Sierra 1500 Limited Pro
  • 2022 GMC Sierra 1500 Limited SLE
  • 2022 GMC Sierra 1500 Limited SLT
  • 2022-2026 GMC Sierra 1500 Pro
  • 2019-2026 GMC Sierra 1500 SLE
  • 2019-2026 GMC Sierra 1500 SLT
View full details

California Proposition 65 Warning

This product can expose you to chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. For more information, visit www.P65Warnings.ca.gov ↗.