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Flowmaster American Thunder Cat-back Exhaust System for Chevrolet and GMC

Part # 817891

  • Large 4.00-inch Black Ceramic Coated Tips
  • Removes Factory Resonators in Tailpipes
  • Large 50 Series HD Performance Muffler
  • Moderately Aggressive Exterior Tone
  • Black Ceramic Coated Quad Tips
  • Full Stainless Steel Construction
  • Uses Factory Hanger Locations
  • Lifetime Limited Warranty

Description

This Flowmaster American Thunder® cat-back dual exhaust system for the 2019-2023 GM Silverado/Sierra 1500 (new body style) trucks with the 6.2L engine and factory dual exhaust, is perfect for the person looking for an aggressive sound level outside the truck, with a moderate interior tone and all the performance benefits you would expect from Flowmaster®. This emissions-legal bolt-on system fits all 6.2L Crew Cab with 5.5-ft and 6.5-ft beds, and all Double Cab with a 6.5-ft bed and factory dual exhaust tailpipes. Features include a mandrel-bent 3.50-inch stainless steel inlet tube flowing into a single 50 Series HD™ muffler, dual 2.50-inch mandrel-bent stainless tailpipes replacing the factory resonators and giving your truck some growl. The tailpipes are finished off with quad 4.00-inch black ceramic coated stainless steel tips that exit in place of the factory bolt-on exhaust bezels giving your truck an aggressive performance style and setting your truck apart from others, sending the message that you would rather lead than follow. Designed for an easy fit, this system includes all necessary parts, detailed instructions and hardware for an easy at home installation. Notes: Fits 147-inch and 157-inch wheelbases with 6.2L engine and factory dual tailpipes. Only fits models with factory bumper cutouts.

Specifications

CARB (California) CompliantYes
Catalytic Converter IncludedNo
Catalytic Converter Quantity0
Clamping TypeFlat Band
Clamps IncludedYes
Exhaust SeriesAmerican Thunder
Exhaust Tip ColorBlack
Exhaust Tip ConnectionWelded
Exhaust Tip CutAngled
Exhaust Tip Diameter4.00 in
Exhaust Tip EdgeAngle Cut
Exhaust Tip FinishBlack Ceramic Coating
Exhaust Tip IntercooledNo
Exhaust Tip Length7.50 in
Exhaust Tip Material304 Stainless Steel
Exhaust Tip Quantity4
Exhaust Tip ResonatedNo
Exhaust Tip ShapeRound
Exhaust Tip WallSingle Wall
Exit StyleDual Out Rear
FinishNatural
Gasket Or Seal IncludedNo
Grade TypePerformance
Hangers IncludedYes
Inlet TypeClamp-On
Main Piping Diameter2.50 in
Mount TypeUses Factory Hangers
UPC / GTIN00700042039050
WarrantyManufacturer's Limited Lifetime Warranty

Fits these vehicles

YearMakeModelSubmodelEngineNote
2019ChevroletSilverado 1500High Country, LTZ6.2L V8Polished Tip Finish, Fits Crew Cab and Double Cab Trucks; Fits Crew Cab and Double Cab Trucks
2020 - 2021ChevroletSilverado 1500Custom Trail Boss, High Country, LT Trail Boss, LTZ, RST6.2L V8Polished Tip Finish, Fits Crew Cab and Double Cab Trucks; Fits Crew Cab and Double Cab Trucks
2022 - 2023ChevroletSilverado 1500High Country, LT Trail Boss, LTZ, RST6.2L V8Polished Tip Finish, Fits Crew Cab and Double Cab Trucks; Fits Crew Cab and Double Cab Trucks
2022ChevroletSilverado 1500 LTDCustom Trail Boss, High Country, LT Trail Boss, LTZ, RST6.2L V8Polished Tip Finish, Fits Crew Cab and Double Cab Trucks; Fits Crew Cab and Double Cab Trucks
2019 - 2021GMCSierra 1500AT4, Denali, SLT6.2L V8Polished Tip Finish, Fits Crew Cab and Double Cab Trucks; Fits Crew Cab and Double Cab Trucks
2022 - 2023GMCSierra 1500AT4, Denali, Denali Ultimate, SLT6.2L V8Polished Tip Finish, Fits Crew Cab and Double Cab Trucks; Fits Crew Cab and Double Cab Trucks
2022GMCSierra 1500 LimitedAT4, Denali, SLT6.2L V8Polished Tip Finish, Fits Crew Cab and Double Cab Trucks; Fits Crew Cab and Double Cab Trucks