Description

This Flowmaster® Outlaw® Cat-back exhaust system for the 2020-2024 Chevy Silverado and GMC Sierra 2500HD/3500HD trucks with the 6.6L gas engine, is perfect if you are looking for an aggressive sound level inside and outside of the truck, with all of the performance benefits that you would expect from Flowmaster®. Maximum increases of up to 9 hp and 9 lb.ft. over the stock exhaust at the rear wheels. Designed for the Crew Cab, Standard Bed (6.5 ft.) models only, this bolt-on, emissions-legal system features a stainless steel Outlaw series muffler and large dual 3.00-inch 409 stainless steel mandrel-bent tailpipes that can be configured to exit either dual straight out the back, or dual out the sides behind the rear wheels which is best suited for towing applications. The system is finished off with polished 4.00-inch stainless steel tips and is covered by our Lifetime Limited Warranty. Designed for an easy fit, this system includes all necessary parts and hardware for installation.

Features

  • Max increases of up to 9 hp and 9 lb.ft. over the stock exhaust at the rear wheels
  • 3.50-inch and 3.00-inch mandrel bent 16-gauge 409 stainless steel tubing maximizes exhaust flow and improves durability
  • Dual 4.00-inch polished stainless steel tips add a custom look
  • Includes complete hardware and factory styled hangers in the stock locations for an easy installation
  • Super 10 Series performance muffler delivers a deep, aggressive performance tone and improves exhaust flow
  • Backed by FlowmasterÂ’s Lifetime Limited Warranty
  • Can be configured to exit straight out the rear or out the side depending on preference

Specifications

BrandFlowmaster
California Proposition 65 Chemical NameChromium (hexavalent compounds), Nickel (Metallic)
California Proposition 65 RequiredYes
Emission Code5
Exhaust SeriesOutlaw
Exhaust Tip Quantity2.00
Exit PositionDOR/S
Exit StyleDual Out Rear
Exit StyleDual Out Side
FinishNatural
Inlet Tubing Diameter3.50
Main Piping Diameter3.50/3.00
Material409 Stainless Steel
Mount TypeUses Factory Hangers
Muffler Body Length6.5
Muffler ColourBlack
Muffler FinishPainted
Muffler Inlet Diameter3.50
Muffler Inlet LocationCentered
Muffler Material409S Stainless Steel
Muffler Outlet Diameter3.00
Muffler Outlet LocationDual Outlet
Muffler Overall Length12.375
Muffler Part NumberKit Only
Muffler Quantity1
Muffler Series10 Series
Muffler ShapeOval
Muffler TypeReflection
Outlet Tubing Diameter3.00
Product TypeExhaust System
Sale CategoryExhaust
Single DualDual
Sound LevelAggressive
System TypeCat-back
Tip CutAngle
Tip Diameter4.00
Tip Edge StyleCut
Tip FinishPolished
Tip Length13
Tip LogoEmbossed
Tip Material304 Stainless
Tip Quantity2.00
Tip ShapeRound
Tip StyleDouble Wall
Tubing Diameter3.5/3
Tubing Material409S Stainless Steel
TypeCat-Back

Compatibility

  • 2020 - 2022 Chevrolet Silverado 2500 HD LT 6.6
  • 2020 - 2022 Chevrolet Silverado 2500 HD High Country 6.6
  • 2020 - 2022 Chevrolet Silverado 2500 HD WT 6.6
  • 2020 - 2022 Chevrolet Silverado 2500 HD Custom 6.6
  • 2020 - 2022 Chevrolet Silverado 2500 HD LTZ 6.6
  • 2023 - 2023 Chevrolet Silverado 2500 HD High Country 6.6
  • 2023 - 2023 Chevrolet Silverado 2500 HD Custom 6.6
  • 2023 - 2023 Chevrolet Silverado 2500 HD LT 6.6
  • 2023 - 2023 Chevrolet Silverado 2500 HD LTZ 6.6
  • 2023 - 2023 Chevrolet Silverado 2500 HD WT 6.6
  • 2024 - 2024 Chevrolet Silverado 2500 HD ZR2 6.6
  • 2024 - 2024 Chevrolet Silverado 2500 HD LT 6.6
  • 2024 - 2024 Chevrolet Silverado 2500 HD LTZ 6.6
  • 2024 - 2024 Chevrolet Silverado 2500 HD WT 6.6
  • 2024 - 2024 Chevrolet Silverado 2500 HD Custom 6.6
  • 2024 - 2024 Chevrolet Silverado 2500 HD High Country 6.6
  • 2020 - 2022 Chevrolet Silverado 3500 HD Base 6.6
  • 2020 - 2022 Chevrolet Silverado 3500 HD High Country 6.6
  • 2020 - 2022 Chevrolet Silverado 3500 HD LTZ 6.6
  • 2020 - 2022 Chevrolet Silverado 3500 HD LT 6.6
  • 2020 - 2022 Chevrolet Silverado 3500 HD WT 6.6
  • 2023 - 2023 Chevrolet Silverado 3500 HD WT 6.6
  • 2023 - 2023 Chevrolet Silverado 3500 HD LT 6.6
  • 2023 - 2023 Chevrolet Silverado 3500 HD High Country 6.6
  • 2023 - 2023 Chevrolet Silverado 3500 HD LTZ 6.6
  • 2023 - 2023 Chevrolet Silverado 3500 HD Base 6.6
  • 2024 - 2024 Chevrolet Silverado 3500 HD LT 6.6
  • 2024 - 2024 Chevrolet Silverado 3500 HD LTZ 6.6
  • 2024 - 2024 Chevrolet Silverado 3500 HD WT 6.6
  • 2024 - 2024 Chevrolet Silverado 3500 HD High Country 6.6
  • 2020 - 2022 GMC Sierra 2500 HD Denali 6.6
  • 2020 - 2022 GMC Sierra 2500 HD SLE 6.6
  • 2020 - 2022 GMC Sierra 2500 HD SLT 6.6
  • 2020 - 2022 GMC Sierra 2500 HD AT4 6.6
  • 2020 - 2021 GMC Sierra 2500 HD Base 6.6
  • 2023 - 2023 GMC Sierra 2500 HD AT4 6.6
  • 2023 - 2023 GMC Sierra 2500 HD SLT 6.6
  • 2023 - 2023 GMC Sierra 2500 HD Pro 6.6
  • 2023 - 2023 GMC Sierra 2500 HD SLE 6.6
  • 2023 - 2023 GMC Sierra 2500 HD Denali 6.6
  • 2024 - 2024 GMC Sierra 2500 HD Pro 6.6
  • 2024 - 2024 GMC Sierra 2500 HD SLT 6.6
  • 2024 - 2024 GMC Sierra 2500 HD SLE 6.6
  • 2024 - 2024 GMC Sierra 2500 HD Denali 6.6
  • 2024 - 2024 GMC Sierra 2500 HD AT4 6.6
  • 2024 - 2024 GMC Sierra 2500 HD AT4X 6.6
  • 2020 - 2022 GMC Sierra 3500 HD SLE 6.6
  • 2020 - 2022 GMC Sierra 3500 HD SLT 6.6
  • 2020 - 2022 GMC Sierra 3500 HD AT4 6.6
  • 2020 - 2022 GMC Sierra 3500 HD Denali 6.6
  • 2020 - 2021 GMC Sierra 3500 HD Base 6.6
  • 2023 - 2023 GMC Sierra 3500 HD SLE 6.6
  • 2023 - 2023 GMC Sierra 3500 HD Denali 6.6
  • 2023 - 2023 GMC Sierra 3500 HD Pro 6.6
  • 2023 - 2023 GMC Sierra 3500 HD AT4 6.6
  • 2023 - 2023 GMC Sierra 3500 HD SLT 6.6
  • 2024 - 2024 GMC Sierra 3500 HD AT4 6.6
  • 2024 - 2024 GMC Sierra 3500 HD SLT 6.6
  • 2024 - 2024 GMC Sierra 3500 HD Denali 6.6
  • 2024 - 2024 GMC Sierra 3500 HD SLE 6.6
  • 2024 - 2024 GMC Sierra 3500 HD Pro 6.6

This Flowmaster® Outlaw® Cat-back exhaust system for the 2020-2024 Chevy Silverado and GMC Sierra 2500HD/3500HD trucks with the 6.6L gas engine, is perfect if you are looking for an aggressive sound level inside and outside of the truck, with all of the performance benefits that you would expect from Flowmaster®. Maximum increases of up to 9 hp and 9 lb.ft. over the stock exhaust at the rear wheels. Designed for the Crew Cab, Standard Bed (6.5 ft.) models only, this bolt-on, emissions-legal system features a stainless steel Outlaw series muffler and large dual 3.00-inch 409 stainless steel mandrel-bent tailpipes that can be configured to exit either dual straight out the back, or dual out the sides behind the rear wheels which is best suited for towing applications. The system is finished off with polished 4.00-inch stainless steel tips and is covered by our Lifetime Limited Warranty. Designed for an easy fit, this system includes all necessary parts and hardware for installation.

Features

  • Max increases of up to 9 hp and 9 lb.ft. over the stock exhaust at the rear wheels
  • 3.50-inch and 3.00-inch mandrel bent 16-gauge 409 stainless steel tubing maximizes exhaust flow and improves durability
  • Dual 4.00-inch polished stainless steel tips add a custom look
  • Includes complete hardware and factory styled hangers in the stock locations for an easy installation
  • Super 10 Series performance muffler delivers a deep, aggressive performance tone and improves exhaust flow
  • Backed by FlowmasterÂ’s Lifetime Limited Warranty
  • Can be configured to exit straight out the rear or out the side depending on preference
BrandFlowmaster
California Proposition 65 Chemical NameChromium (hexavalent compounds), Nickel (Metallic)
California Proposition 65 RequiredYes
Emission Code5
Exhaust SeriesOutlaw
Exhaust Tip Quantity2.00
Exit PositionDOR/S
Exit StyleDual Out Rear
Exit StyleDual Out Side
FinishNatural
Inlet Tubing Diameter3.50
Main Piping Diameter3.50/3.00
Material409 Stainless Steel
Mount TypeUses Factory Hangers
Muffler Body Length6.5
Muffler ColourBlack
Muffler FinishPainted
Muffler Inlet Diameter3.50
Muffler Inlet LocationCentered
Muffler Material409S Stainless Steel
Muffler Outlet Diameter3.00
Muffler Outlet LocationDual Outlet
Muffler Overall Length12.375
Muffler Part NumberKit Only
Muffler Quantity1
Muffler Series10 Series
Muffler ShapeOval
Muffler TypeReflection
Outlet Tubing Diameter3.00
Product TypeExhaust System
Sale CategoryExhaust
Single DualDual
Sound LevelAggressive
System TypeCat-back
Tip CutAngle
Tip Diameter4.00
Tip Edge StyleCut
Tip FinishPolished
Tip Length13
Tip LogoEmbossed
Tip Material304 Stainless
Tip Quantity2.00
Tip ShapeRound
Tip StyleDouble Wall
Tubing Diameter3.5/3
Tubing Material409S Stainless Steel
TypeCat-Back
  • 2020 - 2022 Chevrolet Silverado 2500 HD LT 6.6
  • 2020 - 2022 Chevrolet Silverado 2500 HD High Country 6.6
  • 2020 - 2022 Chevrolet Silverado 2500 HD WT 6.6
  • 2020 - 2022 Chevrolet Silverado 2500 HD Custom 6.6
  • 2020 - 2022 Chevrolet Silverado 2500 HD LTZ 6.6
  • 2023 - 2023 Chevrolet Silverado 2500 HD High Country 6.6
  • 2023 - 2023 Chevrolet Silverado 2500 HD Custom 6.6
  • 2023 - 2023 Chevrolet Silverado 2500 HD LT 6.6
  • 2023 - 2023 Chevrolet Silverado 2500 HD LTZ 6.6
  • 2023 - 2023 Chevrolet Silverado 2500 HD WT 6.6
  • 2024 - 2024 Chevrolet Silverado 2500 HD ZR2 6.6
  • 2024 - 2024 Chevrolet Silverado 2500 HD LT 6.6
  • 2024 - 2024 Chevrolet Silverado 2500 HD LTZ 6.6
  • 2024 - 2024 Chevrolet Silverado 2500 HD WT 6.6
  • 2024 - 2024 Chevrolet Silverado 2500 HD Custom 6.6
  • 2024 - 2024 Chevrolet Silverado 2500 HD High Country 6.6
  • 2020 - 2022 Chevrolet Silverado 3500 HD Base 6.6
  • 2020 - 2022 Chevrolet Silverado 3500 HD High Country 6.6
  • 2020 - 2022 Chevrolet Silverado 3500 HD LTZ 6.6
  • 2020 - 2022 Chevrolet Silverado 3500 HD LT 6.6
  • 2020 - 2022 Chevrolet Silverado 3500 HD WT 6.6
  • 2023 - 2023 Chevrolet Silverado 3500 HD WT 6.6
  • 2023 - 2023 Chevrolet Silverado 3500 HD LT 6.6
  • 2023 - 2023 Chevrolet Silverado 3500 HD High Country 6.6
  • 2023 - 2023 Chevrolet Silverado 3500 HD LTZ 6.6
  • 2023 - 2023 Chevrolet Silverado 3500 HD Base 6.6
  • 2024 - 2024 Chevrolet Silverado 3500 HD LT 6.6
  • 2024 - 2024 Chevrolet Silverado 3500 HD LTZ 6.6
  • 2024 - 2024 Chevrolet Silverado 3500 HD WT 6.6
  • 2024 - 2024 Chevrolet Silverado 3500 HD High Country 6.6
  • 2020 - 2022 GMC Sierra 2500 HD Denali 6.6
  • 2020 - 2022 GMC Sierra 2500 HD SLE 6.6
  • 2020 - 2022 GMC Sierra 2500 HD SLT 6.6
  • 2020 - 2022 GMC Sierra 2500 HD AT4 6.6
  • 2020 - 2021 GMC Sierra 2500 HD Base 6.6
  • 2023 - 2023 GMC Sierra 2500 HD AT4 6.6
  • 2023 - 2023 GMC Sierra 2500 HD SLT 6.6
  • 2023 - 2023 GMC Sierra 2500 HD Pro 6.6
  • 2023 - 2023 GMC Sierra 2500 HD SLE 6.6
  • 2023 - 2023 GMC Sierra 2500 HD Denali 6.6
  • 2024 - 2024 GMC Sierra 2500 HD Pro 6.6
  • 2024 - 2024 GMC Sierra 2500 HD SLT 6.6
  • 2024 - 2024 GMC Sierra 2500 HD SLE 6.6
  • 2024 - 2024 GMC Sierra 2500 HD Denali 6.6
  • 2024 - 2024 GMC Sierra 2500 HD AT4 6.6
  • 2024 - 2024 GMC Sierra 2500 HD AT4X 6.6
  • 2020 - 2022 GMC Sierra 3500 HD SLE 6.6
  • 2020 - 2022 GMC Sierra 3500 HD SLT 6.6
  • 2020 - 2022 GMC Sierra 3500 HD AT4 6.6
  • 2020 - 2022 GMC Sierra 3500 HD Denali 6.6
  • 2020 - 2021 GMC Sierra 3500 HD Base 6.6
  • 2023 - 2023 GMC Sierra 3500 HD SLE 6.6
  • 2023 - 2023 GMC Sierra 3500 HD Denali 6.6
  • 2023 - 2023 GMC Sierra 3500 HD Pro 6.6
  • 2023 - 2023 GMC Sierra 3500 HD AT4 6.6
  • 2023 - 2023 GMC Sierra 3500 HD SLT 6.6
  • 2024 - 2024 GMC Sierra 3500 HD AT4 6.6
  • 2024 - 2024 GMC Sierra 3500 HD SLT 6.6
  • 2024 - 2024 GMC Sierra 3500 HD Denali 6.6
  • 2024 - 2024 GMC Sierra 3500 HD SLE 6.6
  • 2024 - 2024 GMC Sierra 3500 HD Pro 6.6

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