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Flowmaster  |  SKU: 817979

Flowmaster American Thunder Cat-Back Exhaust System - 817979

Fits 2021-2025 Ford F-150 2.7L, 3.5L, 5.0L. American Thunder, Cat-Back, Dual Exit Stainless Steel Exhaust System

Regular price $2,203.20 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 2021-2025 Ford F-150 2.7L, 3.5L, 5.0L. American Thunder, Cat-Back, Dual Exit Stainless Steel Exhaust System

Part Number: 817979

Flowmaster introduces our new American Thunder stainless steel cat-back exhaust system for the 2021-2025 Ford F-150 with the 2.7L, 3.5L and 5.0L engines. This system uses a Super 40 series muffler for a deep powerful sound and increased performance. Maximum dyno gains of 11 HP and 10 LB.FT. at the rear wheels. Mandrel bent 409 stainless steel tubing is used for maximum exhaust flow and durability. The system has a 3.0-inch inlet pipe and dual 2.5-inch tailpipes with both side exit and rear exit options that allow you to customize the look of the kit. 3.5-inch polished stainless steel tips finish off the kit for a classic performance look. All of the necessary hardware is included and factory-mounting locations are used for an easy installation. Backed by Flowmaster's Lifetime Limited Warranty.

Features and Benefits

• Includes Both Rear and Side Exit Tailpipes so the Final Look can be Customized
• Super 40 Series Performance Muffler Delivers a Deep and Aggressive Performance Tone
• Uses the Factory Hanger Locations for an Easy Installation
• Clears the Factory Spare Tire
• Stainless Steel Construction adds Durability
• 3.50-Inch Polished Stainless Steel Tips add a Classic Performance Look
• Delta Flow Technology Increases Performance and Reduces Drone
• Mandrel-bent Tubing Maximizes Exhaust Flow
• Maximum Dyno Gains of 11 HP and 10 LB.FT. at the Rear Wheels
• Lifetime Limited Warranty

2021-2025 Ford f-150 Trucks with 2.7L, 3.5L Ecoboost, 3.5L Ti-VCT and 5.0L engines. Fits 2 & 4-wheel drive. Does not fit regular cab with 6.5' bed. Does not fit hybrid Powerboost models. Does not fit models with OEM active exhaust option.

Specifications

  • Specifications
    BrandFlowmaster
    California Proposition 65Yes
    California Proposition 65 Chemical NameChromium (hexavalent compounds)
    California Proposition 65 Chemical NameNickel (Metallic)
    CARB (California) CompliantYes
    Catalytic Converter IncludedNo
    Catalytic Converter Quantity0
    CategoryExhaust
    Clamping TypeFlat Band
    Clamps IncludedYes
    Emission Code5
    Exhaust SeriesAmerican Thunder
    Exhaust Tip ColorSilver
    Exhaust Tip ConnectionClamp-On
    Exhaust Tip CutAngled
    Exhaust Tip Diameter3.50
    Exhaust Tip EdgeAngle Cut
    Exhaust Tip FinishPolished
    Exhaust Tip IntercooledNo
    Exhaust Tip Length13.00
    Exhaust Tip Material304 Stainless Steel
    Exhaust Tip Quantity2
    Exhaust Tip ResonatedNo
    Exhaust Tip ShapeRound
    Exhaust Tip WallSingle Wall
    Exit StyleDual Out Side
    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 IncludedYes
    Muffler Body Height5.00
    Muffler Body Length10.25
    Muffler Body Material409 Stainless Steel
    Muffler Body ShapeOval
    Muffler Body Width10.00
    Muffler ColorBlack
    Muffler FinishBlack High-Temperature Paint Finish
    Muffler Flanged InletNo
    Muffler Flanged OutletNo
    Muffler IncludedYes
    Muffler Inlet ConnectionSlip-Fit
    Muffler Inlet Inside Diameter3.00
    Muffler Inlet LocationCenter
    Muffler Inlet Outside Diameter3.13
    Muffler Outlet ConnectionSlip-Fit
    Muffler Outlet Diameter2.50
    Muffler Outlet LocationDual
    Muffler Outlet Quantity1
    Muffler Overall Length16.50
    Muffler Part NumberKit Only
    Muffler Quantity1
    Muffler SeriesSuper 40 Series
    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
    Tip LogoEmbossed
    TypeCat-Back
    Valve IncludedNo
    Valve TypeNot Applicable
    WarningCalifornia Proposition 65
  • Instructions

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