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Flowmaster  |  SKU: 817891

Flowmaster American Thunder Cat-back Exhaust System - 817891

Fits 2019-2023 Chevrolet Silverado, GMC Sierra 1500 with 6.2L engine. - Aggressive to moderate sound

Regular price $2,651.70 NZD + GST
Shipping calculated at checkout.
⚠ Special Order Item — ships direct from supplier. No returns, exchanges, or cancellations once processed. Please allow 7–20 days shipping.

Description

Fits 2019-2023 Chevrolet Silverado, GMC Sierra 1500 with 6.2L engine. - Aggressive to moderate sound

Part Number: 817891

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.

Features and Benefits

• 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

Fits 2019-2023 Chevrolet Silverado 1500 and GMC Sierra 1500 Crew Cab and Double Cab models with 6.2L engine. Does not fit models with the Multimatic suspension option.

Specifications

  • Specifications
    BrandFlowmaster
    California Proposition 65Yes
    California Proposition 65 Chemical NameNickel (Metallic)
    California Proposition 65 Chemical NameChromium (hexavalent compounds)
    CARB (California) CompliantYes
    Catalytic Converter IncludedNo
    Catalytic Converter Quantity0
    CategoryExhaust
    Clamping TypeFlat Band
    Clamps IncludedYes
    Emission Code5
    Exhaust SeriesAmerican Thunder
    Exhaust Tip ColorBlack
    Exhaust Tip ConnectionWelded
    Exhaust Tip CutAngled
    Exhaust Tip Diameter4.00
    Exhaust Tip EdgeAngle Cut
    Exhaust Tip FinishBlack Ceramic Coating
    Exhaust Tip IntercooledNo
    Exhaust Tip Length7.50
    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
    Mount TypeUses Factory Hangers
    Mounting Bracket IncludedNo
    Muffler Body Height5.00
    Muffler Body Length18.00
    Muffler Body Material409 Stainless Steel
    Muffler Body ShapeOval
    Muffler Body Width10.00
    Muffler FinishBlack High-Temperature Paint Finish
    Muffler Flanged InletNo
    Muffler Flanged OutletNo
    Muffler IncludedYes
    Muffler Inlet ConnectionSlip-Fit
    Muffler Inlet Inside Diameter3.50
    Muffler Inlet Outside Diameter3.63
    Muffler Outlet ConnectionSlip-Fit
    Muffler Outlet Quantity2
    Muffler Quantity1
    Muffler Series50 Series HD
    Muffler TypeChambered
    part typeExhaust System
    Pipe ColorSilver
    Pipe Material409 Stainless Steel
    Product TypeExhaust System
    Sound LevelAggressive / Moderate
    Spring Bolt Kit IncludedNo
    Sub CategoryExhaust and Tail Pipes
    Tail Pipe Outlet Outside Diameter2.50
    Tail Pipe Quantity2
    Tail Pipe QuantityDual
    Tail Pipe Tapered OutletNo
    TypeCat-Back
    Valve IncludedNo
    Valve TypeNot Applicable
    WarningCalifornia Proposition 65
  • Instructions

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