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Flowmaster American Thunder Axle-Back Exhaust System

Fits 2021-2024 Ford Bronco 2.3L/2.7L, American Thunder Axle-Back, Single Exit

Exhaust Series

Exit Position

Fitment

System Type

Tip Finish

Part # 818121

Flowmaster American Thunder Axle-Back Exhaust System

In Stock
Free Shipping - Lower 48 US States
$475.95
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Delta Flow
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
Looking for the perfect balance between a mild tone while cruising and at idle, but aggressive tone under throttle all while having no drone? The American Thunder axle-back exhaust system is perfect for the daily driven 2021-2024 Ford Bronco with the 2.3 or 2.7-liter engine. This system uses a tuned 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 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:

  • 3.00-inch mandrel bent 16-gauge 409 stainless steel tubing maximizes exhaust flow and improves durability
  • A 3.00-inch polished stainless steel tips add a custom look
  • No Drone
  • Includes complete hardware and factory styled hangers in the stock locations for an easy installation
  • A tuned 60 Series performance muffler delivers a deep, aggressive to moderate performance tone and improves exhaust flow
  • Delta Flow Technology Increases Performance
  • Backed by Flowmaster's Lifetime Limited Warranty

About Flowmaster

Shop the official site of Flowmaster for exhaust systems, mufflers, and more that deliver the iconic Flowmaster sound. Available at Holley.com!

Brand Flowmaster
Emission Code5
Exhaust SeriesAmerican Thunder
Exit PositionSOR
Fitment2 and 4-Door
Material409 Stainless Steel
Mount TypeUses New Hangers (Included)
Muffler Body Length (in)13.5
Muffler ColorBlack
Muffler FinishPainted
Muffler Inlet Diameter (in)3.00
Muffler Inlet LocationCentered
Muffler Material409S Stainless Steel
Muffler Outlet Diameter (in)3.00
Muffler Outlet LocationOffset
Muffler Overall Length (in)34
Muffler Part NumberKit Only
Muffler Quantity1
Muffler Series60 Series
Muffler ShapeOval
Muffler TypeReflection
Product TypeExhaust System
Sale CategoryExhaust
Single DualSingle
Sound LevelAggressive / Moderate
System TypeAxle-back
Tip CutAngle
Tip Diameter3.00
Tip Edge StyleCut
Tip FinishPolished
Tip Length4.75
Tip LogoEmbossed
Tip Material304 Stainless
Tip Quantity1.00
Tip ShapeRound
Tip StyleSingle Wall
Tubing Diameter (in)3.00
Tubing Material409S Stainless Steel
UPC090127140284
California Proposition 65 Chemical NameChromium (hexavalent compounds)
Nickel (Metallic)
California Proposition 65 RequiredYes
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.
2021-2024 Ford Bronco with 2.3L and 2.7L Ecoboost engines. Fits 2 & 4-wheel drive, 2 & 4 Door Models.

*Free Shipping & Handling only offered to the contiguous US on orders over $149, excludes clearance parts and oversized packages.

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