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Flowmaster Flow FX Cat-Back Exhaust System for Chevrolet and GMC

Part # 717890

  • Max Increases of up to 26 hp and 39 lb.ft. over the stock exhaust at the rear wheels
  • 3.5-inch and 2.5-inch mandrel bent 16-gauge 409 stainless steel tubing maximizes exhaust flow and improves durability
  • Connects to the factory dual exhaust tips for a stealthy look
  • Includes complete hardware and factory styled hangers in the stock locations for an easy installation
  • Flow FX “straight through” performance muffler delivers a deep, moderate performance tone and improves exhaust flow
  • Backed by Flowmaster’s Lifetime Limited Warranty

Description

This Flowmaster® Flow FX® cat-back exhaust system for the 2019-2023 GM Silverado/Sierra 1500 trucks with the 6.2L engine and factory dual exhaust, is manufactured using durable 409 stainless steel throughout and features 3.5-inch to dual 2.50-inch mandrel bent pipes for better exhaust gas flow, and a Flow FX "straight-through" muffler is used for a moderate sound level and maximum performance. Maximum increases on the dyno revealed +26 hp and +39 lb.ft at the rear wheels. This system fits all wheelbases and connects to the factory exhaust tips that exit in the rear bumper for a stealthy look. The system uses all the existing factory hanger locations and includes installation instructions and all necessary hardware for an easy installation that you can do at home. Backed by Flowmaster's Lifetime Limited Warranty.

Specifications

CARB (California) CompliantYes
Catalytic Converter IncludedNo
Catalytic Converter Quantity0
Clamping TypeFlat Band
Clamps IncludedYes
Exhaust SeriesFlow FX
Exhaust Tip ConnectionClamp-On
Exhaust Tip Diameter2.50 in
Exhaust Tip IntercooledNo
Exhaust Tip Quantity2
Exhaust Tip ShapeRound
Exit StyleDual Out Side
FinishNatural
Gasket Or Seal IncludedNo
Grade TypePerformance
Hangers IncludedYes
Inlet TypeClamp-On
Main Piping Diameter2.50 in
Mount TypeUses Factory Hangers
Mounting Bracket IncludedNo
Muffler Body Height5.00 in
Muffler Body Length18.00 in
Muffler Body Material409 Stainless Steel
Muffler Body ShapeOval
Muffler Body Width8.00 in
Muffler ColorSilver
Muffler FinishNatural
UPC / GTIN00090127107867
WarrantyManufacturer's Limited Lifetime Warranty

Fits these vehicles

YearMakeModelSubmodelEngine
2019ChevroletSilverado 1500High Country, LTZ6.2L V8
2020ChevroletSilverado 1500Custom Trail Boss, High Country, LT Trail Boss, LTZ, RST6.2L V8
2021ChevroletSilverado 1500Custom Trail Boss, High Country, LTZ, RST6.2L V8
2022 - 2023ChevroletSilverado 1500High Country, LT Trail Boss, LTZ, RST6.2L V8
2022ChevroletSilverado 1500 LTDCustom Trail Boss, High Country, LT Trail Boss, LTZ, RST6.2L V8
2019 - 2021GMCSierra 1500AT4, Denali, SLT6.2L V8
2022 - 2023GMCSierra 1500AT4, Denali, Denali Ultimate, SLT6.2L V8
2022GMCSierra 1500 LimitedAT4, Denali, SLT6.2L V8