Skip to main content
Motor Life Events Community Support
ASK OUR EXPERTS
1-866-464-6553
7
Images
Videos
Flowmaster

Flowmaster American Thunder Cat-Back Exhaust System

Fits 2021-2024 Ford F-150 with 3.5-liter PowerBoost Hybrid Engine

Part # 818166

Flowmaster American Thunder Cat-Back Exhaust System

Estimated Ship Date: 05/22/2024
Free Shipping - Lower 48 US States
$889.95
Add to Wishlist
Starting at $79 a month with Learn More
Does it fit my vehicle?
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 Flowmaster® American Thunder cat-back exhaust system is for the 2021-2024 Ford F-150 with the 3.5-liter PowerBoost. This system is manufactured using durable 409 stainless steel tubing and is mandrel bent for better exhaust gas flow. A specially tuned resonator is used for a deep, moderate to mild sound level and maximum performance. This system uses a 5.0-inch black ceramic coated stainless steel tip for added style. This system uses all the existing factory hanger locations and includes installation instructions and all necessary hardware for an easy installation that you can do at home. Backed by Flowmaster's Lifetime Limited Warranty.

Features:

  • 3.00-inch and 3.50-inch mandrel bent 16-gauge 409 stainless steel tubing maximizes exhaust flow and improves durability
  • A 5.00-inch black ceramic coated stainless steal tip add a custom look to the vehicle
  • Kit includes complete hardware and factory styled hangers in the stock locations for an easy installation
  • A specially tuned resonator delivers a deep, moderate to mild performance tone and improves exhaust flow
  • 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 PositionSOS
Material409S Stainless Steel
Mount TypeUses Factory Hangers
Muffler Body Length (in)14.88
Muffler ColorBlack
Muffler FinishPainted
Muffler Inlet Diameter3
Muffler Inlet LocationOffset
Muffler Material409S Stainless Steel
Muffler Outlet Diameter3.5
Muffler Outlet LocationOffset
Muffler Overall Length (in)20
Muffler Part NumberKit Only
Muffler Quantity1
Muffler SeriesN/A
Muffler ShapeOval
Muffler TypeReflection
Product TypeExhaust System
Single DualSingle
Sound LevelModerate / Mild
System TypeCat-back
Tip CutAngle
Tip Diameter5
Tip Edge StyleRolled
Tip FinishBlack Ceramic
Tip Length12
Tip LogoEmbossed
Tip Material304 Stainless
Tip Quantity1
Tip ShapeRound
Tip StyleSingle Wall
Tubing Diameter (in)3
Tubing Material409S Stainless Steel
UPC090127844762
California Proposition 65 Chemical NameChromium (hexavalent compounds)
Nickel (Metallic)
California Proposition 65 RequiredYes
Part Number818166
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# 818166
Warranty for Part# 818166
Fits PowerBoost models with factory single tailpipe only. Does not fit models with OEM active exhaust option.

We Suggest

*Free Shipping & Handling only offered to the contiguous US on orders over $150, excludes clearance parts and oversized packages.

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