Product Summary

Single Single or Dual, 1 Muffler Quantity, Natural

  • 3.00-inch and 3.5-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
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Key Specs

MFG. Part #818166
BrandFlowmaster
Single or DualSingle
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Flowmaster 818166 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 5.00-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.
  • 3.00-inch and 3.5-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
  • CARB Warning

    For use on pre-1966 vehicles only

    Emissions warning: this part only legal for sale or use in California if installed in vehicles model-year 1965 or older; motorcycles model-year 1977 or older; or off-highway recreational vehicles (such as off-road motorcycles and all-terrain vehicles) model-year 1996 and older. ++any other use renders the vehicle tampered and not legal for use on California public highways (any public street or roadway, public dirt road, public park, or publicly maintained right of way open to the use of the public for vehicular travel). Violations subject to $37,500 penalty per violation per vehicle, revocation of registration, loss of use on California public right of ways, and proof of correction for tampering there are similar restrictions and penalties under federal law and the laws of all other states with penalties under federal law of up to approximately $45,268 per tampered vehicle and/or engine.

    Flowmaster 818166 Specifications

    KEY SPECS
    MFG. Part #818166
    BrandFlowmaster
    Single or DualSingle
    GENERAL
    Muffler Quantity1
    Exhaust Tip IncludedNo
    Exhaust Tip Quantity1
    Exhaust Tip ShapeRound
    Exhaust System FinishNatural
    Muffler FinishPainted
    Sold in QuantityEach
    GTIN Code00090127844762
    Material TypeStainless Steel
    Gaskets IncludedNo
    Catalytic Converter Quantity0

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