Flowmaster Outlaw Exhaust System for Silverado 1500/Sierra 1500 | FLO238970

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Fitment Info

  • Not your vehicle? See all Flowmaster Outlaw Exhaust Systems
  • Aggressive race-oriented exhaust system
  • Catalog Number: Flowmaster 817854
  • Fits: Chevrolet Silverado 1500, GMC Sierra 1500 (check fitment chart for compatibility)
Details

AMP BedXtender HD Sport for Silverado 1500/Sierra 1500 | 817854

Product Specifications:

  • Sound Level: Aggressive/ Moderate
  • Type: Cat-Back
  • Exhaust Type: Single
  • Outlet Type: Dual
  • Exit Position: Rear Exit
  • Material: Stainless Steel
  • Diameter (IN): 3 Inch
  • Includes Muffler: Yes
  • Muffler Brand: Flowmaster
  • Includes Exhaust Tip: Yes
  • Exhaust Tip Style: 4 Inch Round Angle-Cut
  • Exhaust Tip Material: Stainless Steel
  • Muffler Quantity: 1
  • Includes Exhaust Pipe Muffler Delete: No
  • Muffler Configuration: Single Inlet, Dual Outlet
  • Includes Hardware: Yes
  • Required Welding: No
  • Estimated Install Time (Hours): 2

Fitment Chart:

YearsMakeModelSubmodelBody TypeBed LengthLitersCylindersNotes
2021ChevroletSilverado 1500Crew Cab Pickup5' 9" Foot Bed5.3LV8Single; Dual Rear Or Side Exit; Incl. 3.0 in. Tubing/10 Series Mufflers/4.0 in. Black Ceramic 304 Stainless Tips; 409 Stainless Steel; 50 State Legal / California Emissions Compliant
2021ChevroletSilverado 1500Crew Cab Pickup6' 7" Foot Bed5.3LV8Single; Dual Rear Or Side Exit; Incl. 3.0 in. Tubing/10 Series Mufflers/4.0 in. Black Ceramic 304 Stainless Tips; 409 Stainless Steel; 50 State Legal / California Emissions Compliant
2021ChevroletSilverado 1500Extended Cab Pickup6' 7" Foot Bed5.3LV8Single; Dual Rear Or Side Exit; Incl. 3.0 in. Tubing/10 Series Mufflers/4.0 in. Black Ceramic 304 Stainless Tips; 409 Stainless Steel; 50 State Legal / California Emissions Compliant
2021GMCSierra 1500Crew Cab Pickup5' 9" Foot Bed5.3LV8Single; Dual Rear Or Side Exit; Incl. 3.0 in. Tubing/10 Series Mufflers/4.0 in. Black Ceramic 304 Stainless Tips; 409 Stainless Steel; 50 State Legal / California Emissions Compliant
2021GMCSierra 1500Crew Cab Pickup6' 7" Foot Bed5.3LV8Single; Dual Rear Or Side Exit; Incl. 3.0 in. Tubing/10 Series Mufflers/4.0 in. Black Ceramic 304 Stainless Tips; 409 Stainless Steel; 50 State Legal / California Emissions Compliant
2021GMCSierra 1500Extended Cab Pickup6' 7" Foot Bed5.3LV8Single; Dual Rear Or Side Exit; Incl. 3.0 in. Tubing/10 Series Mufflers/4.0 in. Black Ceramic 304 Stainless Tips; 409 Stainless Steel; 50 State Legal / California Emissions Compliant
2020ChevroletSilverado 1500CustomCrew Cab Pickup5' 9" Foot Bed5.3LV8Single; Dual Rear Or Side Exit; Incl. 3.0 in. Tubing/10 Series Mufflers/4.0 in. Black Ceramic 304 Stainless Tips; 409 Stainless Steel; 50 State Legal / California Emissions Compliant
2020ChevroletSilverado 1500CustomCrew Cab Pickup6' 7" Foot Bed5.3LV8Single; Dual Rear Or Side Exit; Incl. 3.0 in. Tubing/10 Series Mufflers/4.0 in. Black Ceramic 304 Stainless Tips; 409 Stainless Steel; 50 State Legal / California Emissions Compliant
2020ChevroletSilverado 1500CustomExtended Cab Pickup5' 9" Foot Bed5.3LV8Single; Dual Rear Or Side Exit; Incl. 3.0 in. Tubing/10 Series Mufflers/4.0 in. Black Ceramic 304 Stainless Tips; 409 Stainless Steel; 50 State Legal / California Emissions Compliant
2020ChevroletSilverado 1500CustomExtended Cab Pickup6' 7" Foot Bed5.3LV8Single; Dual Rear Or Side Exit; Incl. 3.0 in. Tubing/10 Series Mufflers/4.0 in. Black Ceramic 304 Stainless Tips; 409 Stainless Steel; 50 State Legal / California Emissions Compliant
2020ChevroletSilverado 1500Custom Trail BossCrew Cab Pickup5' 9" Foot Bed5.3LV8Single; Dual Rear Or Side Exit; Incl. 3.0 in. Tubing/10 Series Mufflers/4.0 in. Black Ceramic 304 Stainless Tips; 409 Stainless Steel; 50 State Legal / California Emissions Compliant
2020ChevroletSilverado 1500Custom Trail BossCrew Cab Pickup6' 7" Foot Bed5.3LV8Single; Dual Rear Or Side Exit; Incl. 3.0 in. Tubing/10 Series Mufflers/4.0 in. Black Ceramic 304 Stainless Tips; 409 Stainless Steel; 50 State Legal / California Emissions Compliant
2020ChevroletSilverado 1500Custom Trail BossExtended Cab Pickup5' 9" Foot Bed5.3LV8Single; Dual Rear Or Side Exit; Incl. 3.0 in. Tubing/10 Series Mufflers/4.0 in. Black Ceramic 304 Stainless Tips; 409 Stainless Steel; 50 State Legal / California Emissions Compliant
2020ChevroletSilverado 1500Custom Trail BossExtended Cab Pickup6' 7" Foot Bed5.3LV8Single; Dual Rear Or Side Exit; Incl. 3.0 in. Tubing/10 Series Mufflers/4.0 in. Black Ceramic 304 Stainless Tips; 409 Stainless Steel; 50 State Legal / California Emissions Compliant
2020ChevroletSilverado 1500High CountryCrew Cab Pickup5' 9" Foot Bed5.3LV8Single; Dual Rear Or Side Exit; Incl. 3.0 in. Tubing/10 Series Mufflers/4.0 in. Black Ceramic 304 Stainless Tips; 409 Stainless Steel; 50 State Legal / California Emissions Compliant
2020ChevroletSilverado 1500High CountryCrew Cab Pickup6' 7" Foot Bed5.3LV8Single; Dual Rear Or Side Exit; Incl. 3.0 in. Tubing/10 Series Mufflers/4.0 in. Black Ceramic 304 Stainless Tips; 409 Stainless Steel; 50 State Legal / California Emissions Compliant
2020ChevroletSilverado 1500LTCrew Cab Pickup5' 9" Foot Bed5.3LV8Single; Dual Rear Or Side Exit; Incl. 3.0 in. Tubing/10 Series Mufflers/4.0 in. Black Ceramic 304 Stainless Tips; 409 Stainless Steel; 50 State Legal / California Emissions Compliant
2020ChevroletSilverado 1500LTCrew Cab Pickup6' 7" Foot Bed5.3LV8Single; Dual Rear Or Side Exit; Incl. 3.0 in. Tubing/10 Series Mufflers/4.0 in. Black Ceramic 304 Stainless Tips; 409 Stainless Steel; 50 State Legal / California Emissions Compliant
2020ChevroletSilverado 1500LTExtended Cab Pickup5' 9" Foot Bed5.3LV8Single; Dual Rear Or Side Exit; Incl. 3.0 in. Tubing/10 Series Mufflers/4.0 in. Black Ceramic 304 Stainless Tips; 409 Stainless Steel; 50 State Legal / California Emissions Compliant
2020ChevroletSilverado 1500LTExtended Cab Pickup6' 7" Foot Bed5.3LV8Single; Dual Rear Or Side Exit; Incl. 3.0 in. Tubing/10 Series Mufflers/4.0 in. Black Ceramic 304 Stainless Tips; 409 Stainless Steel; 50 State Legal / California Emissions Compliant
2020ChevroletSilverado 1500LT Trail BossCrew Cab Pickup5' 9" Foot Bed5.3LV8Single; Dual Rear Or Side Exit; Incl. 3.0 in. Tubing/10 Series Mufflers/4.0 in. Black Ceramic 304 Stainless Tips; 409 Stainless Steel; 50 State Legal / California Emissions Compliant
2020ChevroletSilverado 1500LT Trail BossCrew Cab Pickup6' 7" Foot Bed5.3LV8Single; Dual Rear Or Side Exit; Incl. 3.0 in. Tubing/10 Series Mufflers/4.0 in. Black Ceramic 304 Stainless Tips; 409 Stainless Steel; 50 State Legal / California Emissions Compliant
2020ChevroletSilverado 1500LTZCrew Cab Pickup5' 9" Foot Bed5.3LV8Single; Dual Rear Or Side Exit; Incl. 3.0 in. Tubing/10 Series Mufflers/4.0 in. Black Ceramic 304 Stainless Tips; 409 Stainless Steel; 50 State Legal / California Emissions Compliant
2020ChevroletSilverado 1500LTZCrew Cab Pickup6' 7" Foot Bed5.3LV8Single; Dual Rear Or Side Exit; Incl. 3.0 in. Tubing/10 Series Mufflers/4.0 in. Black Ceramic 304 Stainless Tips; 409 Stainless Steel; 50 State Legal / California Emissions Compliant
2020ChevroletSilverado 1500LTZExtended Cab Pickup5' 9" Foot Bed5.3LV8Single; Dual Rear Or Side Exit; Incl. 3.0 in. Tubing/10 Series Mufflers/4.0 in. Black Ceramic 304 Stainless Tips; 409 Stainless Steel; 50 State Legal / California Emissions Compliant
2020ChevroletSilverado 1500LTZExtended Cab Pickup6' 7" Foot Bed5.3LV8Single; Dual Rear Or Side Exit; Incl. 3.0 in. Tubing/10 Series Mufflers/4.0 in. Black Ceramic 304 Stainless Tips; 409 Stainless Steel; 50 State Legal / California Emissions Compliant
2020ChevroletSilverado 1500RSTCrew Cab Pickup5' 9" Foot Bed5.3LV8Single; Dual Rear Or Side Exit; Incl. 3.0 in. Tubing/10 Series Mufflers/4.0 in. Black Ceramic 304 Stainless Tips; 409 Stainless Steel; 50 State Legal / California Emissions Compliant
2020ChevroletSilverado 1500RSTCrew Cab Pickup6' 7" Foot Bed5.3LV8Single; Dual Rear Or Side Exit; Incl. 3.0 in. Tubing/10 Series Mufflers/4.0 in. Black Ceramic 304 Stainless Tips; 409 Stainless Steel; 50 State Legal / California Emissions Compliant
2020ChevroletSilverado 1500RSTExtended Cab Pickup5' 9" Foot Bed5.3LV8Single; Dual Rear Or Side Exit; Incl. 3.0 in. Tubing/10 Series Mufflers/4.0 in. Black Ceramic 304 Stainless Tips; 409 Stainless Steel; 50 State Legal / California Emissions Compliant
2020ChevroletSilverado 1500RSTExtended Cab Pickup6' 7" Foot Bed5.3LV8Single; Dual Rear Or Side Exit; Incl. 3.0 in. Tubing/10 Series Mufflers/4.0 in. Black Ceramic 304 Stainless Tips; 409 Stainless Steel; 50 State Legal / California Emissions Compliant
2020ChevroletSilverado 1500SSVCrew Cab Pickup5' 9" Foot Bed5.3LV8Single; Dual Rear Or Side Exit; Incl. 3.0 in. Tubing/10 Series Mufflers/4.0 in. Black Ceramic 304 Stainless Tips; 409 Stainless Steel; 50 State Legal / California Emissions Compliant
2020ChevroletSilverado 1500SSVCrew Cab Pickup6' 7" Foot Bed5.3LV8Single; Dual Rear Or Side Exit; Incl. 3.0 in. Tubing/10 Series Mufflers/4.0 in. Black Ceramic 304 Stainless Tips; 409 Stainless Steel; 50 State Legal / California Emissions Compliant
2020ChevroletSilverado 1500WTCrew Cab Pickup5' 9" Foot Bed5.3LV8Single; Dual Rear Or Side Exit; Incl. 3.0 in. Tubing/10 Series Mufflers/4.0 in. Black Ceramic 304 Stainless Tips; 409 Stainless Steel; 50 State Legal / California Emissions Compliant
2020ChevroletSilverado 1500WTCrew Cab Pickup6' 7" Foot Bed5.3LV8Single; Dual Rear Or Side Exit; Incl. 3.0 in. Tubing/10 Series Mufflers/4.0 in. Black Ceramic 304 Stainless Tips; 409 Stainless Steel; 50 State Legal / California Emissions Compliant
2020ChevroletSilverado 1500WTExtended Cab Pickup5' 9" Foot Bed5.3LV8Single; Dual Rear Or Side Exit; Incl. 3.0 in. Tubing/10 Series Mufflers/4.0 in. Black Ceramic 304 Stainless Tips; 409 Stainless Steel; 50 State Legal / California Emissions Compliant
2020ChevroletSilverado 1500WTExtended Cab Pickup6' 7" Foot Bed5.3LV8Single; Dual Rear Or Side Exit; Incl. 3.0 in. Tubing/10 Series Mufflers/4.0 in. Black Ceramic 304 Stainless Tips; 409 Stainless Steel; 50 State Legal / California Emissions Compliant
2020GMCSierra 1500AT4Crew Cab Pickup5' 9" Foot Bed5.3LV8Single; Dual Rear Or Side Exit; Incl. 3.0 in. Tubing/10 Series Mufflers/4.0 in. Black Ceramic 304 Stainless Tips; 409 Stainless Steel; 50 State Legal / California Emissions Compliant
2020GMCSierra 1500AT4Crew Cab Pickup6' 7" Foot Bed5.3LV8Single; Dual Rear Or Side Exit; Incl. 3.0 in. Tubing/10 Series Mufflers/4.0 in. Black Ceramic 304 Stainless Tips; 409 Stainless Steel; 50 State Legal / California Emissions Compliant
2020GMCSierra 1500AT4Extended Cab Pickup5' 9" Foot Bed5.3LV8Single; Dual Rear Or Side Exit; Incl. 3.0 in. Tubing/10 Series Mufflers/4.0 in. Black Ceramic 304 Stainless Tips; 409 Stainless Steel; 50 State Legal / California Emissions Compliant
2020GMCSierra 1500AT4Extended Cab Pickup6' 7" Foot Bed5.3LV8Single; Dual Rear Or Side Exit; Incl. 3.0 in. Tubing/10 Series Mufflers/4.0 in. Black Ceramic 304 Stainless Tips; 409 Stainless Steel; 50 State Legal / California Emissions Compliant
2020GMCSierra 1500DenaliCrew Cab Pickup5' 9" Foot Bed5.3LV8Single; Dual Rear Or Side Exit; Incl. 3.0 in. Tubing/10 Series Mufflers/4.0 in. Black Ceramic 304 Stainless Tips; 409 Stainless Steel; 50 State Legal / California Emissions Compliant
2020GMCSierra 1500DenaliCrew Cab Pickup6' 7" Foot Bed5.3LV8Single; Dual Rear Or Side Exit; Incl. 3.0 in. Tubing/10 Series Mufflers/4.0 in. Black Ceramic 304 Stainless Tips; 409 Stainless Steel; 50 State Legal / California Emissions Compliant
2020GMCSierra 1500SLECrew Cab Pickup5' 9" Foot Bed5.3LV8Single; Dual Rear Or Side Exit; Incl. 3.0 in. Tubing/10 Series Mufflers/4.0 in. Black Ceramic 304 Stainless Tips; 409 Stainless Steel; 50 State Legal / California Emissions Compliant
2020GMCSierra 1500SLECrew Cab Pickup6' 7" Foot Bed5.3LV8Single; Dual Rear Or Side Exit; Incl. 3.0 in. Tubing/10 Series Mufflers/4.0 in. Black Ceramic 304 Stainless Tips; 409 Stainless Steel; 50 State Legal / California Emissions Compliant
2020GMCSierra 1500SLEExtended Cab Pickup5' 9" Foot Bed5.3LV8Single; Dual Rear Or Side Exit; Incl. 3.0 in. Tubing/10 Series Mufflers/4.0 in. Black Ceramic 304 Stainless Tips; 409 Stainless Steel; 50 State Legal / California Emissions Compliant
2020GMCSierra 1500SLEExtended Cab Pickup6' 7" Foot Bed5.3LV8Single; Dual Rear Or Side Exit; Incl. 3.0 in. Tubing/10 Series Mufflers/4.0 in. Black Ceramic 304 Stainless Tips; 409 Stainless Steel; 50 State Legal / California Emissions Compliant
2020GMCSierra 1500SLTCrew Cab Pickup5' 9" Foot Bed5.3LV8Single; Dual Rear Or Side Exit; Incl. 3.0 in. Tubing/10 Series Mufflers/4.0 in. Black Ceramic 304 Stainless Tips; 409 Stainless Steel; 50 State Legal / California Emissions Compliant
2020GMCSierra 1500SLTCrew Cab Pickup6' 7" Foot Bed5.3LV8Single; Dual Rear Or Side Exit; Incl. 3.0 in. Tubing/10 Series Mufflers/4.0 in. Black Ceramic 304 Stainless Tips; 409 Stainless Steel; 50 State Legal / California Emissions Compliant
2020GMCSierra 1500SLTExtended Cab Pickup5' 9" Foot Bed5.3LV8Single; Dual Rear Or Side Exit; Incl. 3.0 in. Tubing/10 Series Mufflers/4.0 in. Black Ceramic 304 Stainless Tips; 409 Stainless Steel; 50 State Legal / California Emissions Compliant
2020GMCSierra 1500SLTExtended Cab Pickup6' 7" Foot Bed5.3LV8Single; Dual Rear Or Side Exit; Incl. 3.0 in. Tubing/10 Series Mufflers/4.0 in. Black Ceramic 304 Stainless Tips; 409 Stainless Steel; 50 State Legal / California Emissions Compliant

 

 

Aggressive Race-Oriented Exhaust System

Aggressive Race-Oriented Exhaust System

The Flowmaster 817854 Outlaw cat-back exhaust system is the manufacturer's most aggressive race-oriented system, designed for your Chevrolet Silverado 1500. If you are a racing enthusiast or you just love the feel and sound of a roaring engine, it is perfect for you.

Two Flowmaster Outlaw mufflers

Two Flowmaster Outlaw mufflers

For such aggressiveness, the exhaust system includes two Flowmaster Outflow series mufflers. They produce a moderate interior tone and fierce, aggressive exterior roar that will certainly add the race-quality thrill to your Chevrolet Silverado 1500's drive.

Reduced Internal Noise

Reduced Internal Noise

The Mandrel-bent tubing ensures a smooth flow of exhaust gases. This reduces internal resonance which reduces noise inside the vehicle.

Optimized Performance

Optimized Performance

The Flowmaster 817854 Outlaw cat-back exhaust system also features a dyno tuning that is well tested and proven to increase its horsepower to optimize performance on your Chevrolet Silverado 1500.

Easy to Install

Easy to Install

The exhaust system is easy to install. It comes with a full bolt-on fitment with factory mounting points and all installation hardware. For the perfect fitment, however, you should let a professional do the installation.

Made Strong To Last Long

Made Strong To Last Long

The exhaust system is made with tough steel to last on your Chevrolet Silverado 1500. It is corrosion and rust-resistant and will withstand road abuse for years while still maintaining its quality.

Manufacturer's Guarantee of Quality

Manufacturer's Guarantee of Quality

Flowmaster offers a limited lifetime warranty for every stainless steel exhaust system and a three-year warranty for every aluminized steel system. It is a guarantee of superior quality and excellent performance.

Proudly Made In The USA

Proudly Made In The USA

The Flowmaster 817854 Outlaw is proudly made in the USA using local labor and materials. The company employs thousands of Americans every year and uses authentic locally made materials with superior technology.

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