Flowmaster

Flowmaster 817979 American Thunder Cat-Back Exhaust System

Compatible with 2021-2022 Ford® F-150® 2.7L,3.5L,5.0L. 2 and 4 wheel drive, all wheelbases. This product is not created or sold by Ford®.

Part # 817979
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$871.95
Suggested Retail
$969.00
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5

Emissions

This part is legal for sale or use on Emissions Controlled Vehicles, Uncontrolled (Non-Emissions Controlled) Vehicles, and Racing Use Only Vehicles because it does not affect vehicle emissions and is not covered by emissions regulations.

See Emissions Details
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:

  • 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
  • 409 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
  • Manufacturer's Limited Lifetime Warranty
Brand Flowmaster
Emission Code5
Exhaust SeriesAmerican Thunder
Exit PositionDOR/S
Mount TypeUses Factory Hangers
Muffler Body Length (in)10.5"
Muffler ColorBlack
Muffler FinishPainted
Muffler Inlet Diameter (in)3.0
Muffler Inlet LocationCentered
Muffler Material409S Stainless Steel
Muffler Outlet Diameter (in)2.50
Muffler Outlet LocationDual Outlet
Muffler Overall Length (in)16.5
Muffler Quantity1
Muffler SeriesSuper 40
Muffler ShapeOval
Muffler TypeReflection
Product TypeCat-Back Exhaust Systems
Sound LevelAggressive / Moderate
System TypeCat-Back
Tip CutAngle
Tip Diameter3.5"
Tip Edge StyleCut
Tip FinishPolished
Tip Length (in)13
Tip LogoEmbossed
Tip Material304 Stainless Steel
Tip Quantity2
Tip ShapeRound
Tip StyleDouble Wall
Tubing Diameter (in)3.00/2.50
Tubing Material409S Stainless Steel
UPC090127130179
Manufacturer Part Number817979
California Proposition 65 Chemical NameChromium
Part Number817979
5

This part is legal for sale or use on Emissions Controlled Vehicles, Uncontrolled (Non-Emissions Controlled) Vehicles, and Racing Use Only Vehicles because it does not affect vehicle emissions and is not covered by emissions regulations.

*Free Shipping & Handling only offered to the contiguous US on orders over $100, excludes clearance parts and oversized packages.

Some parts are not legal for use in California or other states with similar regulations.