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Flowmaster

Flowmaster 818121 American Thunder Axle-Back Exhaust System Stainless Single Exit

Compatible with 2021-2023 Ford® Bronco® 2.3L/2.7L. This product is not created or sold by Ford®. Fits 2 & 4-wheel drive, 2 & 4 Door Models.

Part # 818121

Flowmaster 818121 American Thunder Axle-Back Exhaust System Stainless Single Exit

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$428.95
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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.

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Flowmaster® introduces our American Thunder axle-back exhaust system for the 2021-2023 Ford® Bronco® with the 2.3 or 2.7-liter engine. This system uses a 60 Series style muffler for an aggressive to moderate exhaust tone and increased performance. Maximum dyno gains of 19 hp and 19 lb-ft. were measured at the rear wheels. 3.00-inch mandrel bent 409 stainless steel tubing is used to maximize exhaust flow and durability. A polished 3.00-inch stainless steel tip is used to to add a custom look to this iconic vehicle. 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:

  • Max increases of up to 19 hp and 19 lb-ft over the stock exhaust at the rear wheels
  • A 60 Series performance muffler delivers a deep, aggressive to moderate performance tone and improves exhaust flow
  • 409 stainless steel construction delivers extra durability and improved long-term corrosion resistance for a stealthy look
  • Delta Flow Technology increases performance and reduces drone
  • Uses factory hanger locations for easy installation
  • 3.0-inch 16-gauge mandrel bent stainless steel tubing helps maintain maximum exhaust flow for better power
  • Includes all necessary hardware for an at home installation
  • Single 3.00-inch polished stainless steel tip adds a custom look
  • Backed by Flowmaster’s Lifetime Limited Warranty
Brand Flowmaster
Emission Code5
Exhaust SeriesAmerican Thunder
Exit PositionSingle Outlet Side
Mount TypeUses New Hangers (Included)
Muffler Body Length (in)13.5
Muffler ColorBlack
Muffler FinishPainted
Muffler Inlet Diameter (in)3.0
Muffler Inlet LocationCentered
Muffler Material409S Stainless Steel
Muffler Outlet Diameter (in)3.0
Muffler Overall Length (in)34
Muffler Series60 Series
Muffler ShapeOval
Muffler TypeReflection
Product TypeAxle-Back Exhaust
QuantitySold as a Kit
Sound LevelAggressive/Moderate
Tip Diameter3.0
Tip Length (in)4.75
Tip LogoEmbossed
Tip ShapeRound
Tip StyleSingle Wall
Tubing Diameter (in)3.0
Tubing Material409S Stainless Steel
UPC090127140284
Manufacturer Part Number717890
California Proposition 65 Chemical NameChromium (hexavalent compounds)
Nickel (Metallic)
Part Number818121
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.
Instructions for Part #818121
Warranty for Part #818121
Fits 2 & 4-wheel drive, 2 & 4 Door Models.

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