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Flowmaster Exhaust Ford F150 Lightning 5.4L Supercharged (99-04) 2.50" Catback - American Thunder 17367
Flowmaster Exhaust Ford F150 Lightning 5.4L Supercharged (99-04) 2.50" Catback - American Thunder 17367
Flowmaster Exhaust Ford F150 Lightning 5.4L Supercharged (99-04) 2.50" Catback - American Thunder 17367
Flowmaster Exhaust Ford F150 Lightning 5.4L Supercharged (99-04) 2.50" Catback - American Thunder 17367

Flowmaster Exhaust Ford F150 Lightning 5.4L Supercharged (99-04) 2.50" Catback - American Thunder 17367

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American Thunder® is the ‘original’ Flowmaster sound. In most cases a very aggressive sound level, American Thunder systems use various chambered mufflers to achieve the performance gains and aggressive sound that you want from your car or truck, inside and out. Available in stainless steel or economical aluminized steel, American Thunder systems are a great choice when you want to be heard.

Fitment Information

  • Ford Lightning 5.4L Supercharged (1999, 2000, 2001, 20002, 2003, 2004) 

Emissions Compliance

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.

Specs & Features

  • 2WD/4WD: 2WD/4WD
  • Emission Code: 5
  • Exhaust Series: American Thunder
  • Exit Position: Dual Same Side Exit
  • Heat Shield: No
  • Inlet Diameter (in): 2.5
  • Material: Aluminized Steel
  • Mount Type: Uses New Hangers (Included)
  • Muffler Part Number: Kit Only
  • Muffler Quantity: 1
  • Muffler Series: 50 Series HD
  • Outlet Diameter (in): 2.5
  • Product Type: Catback Exhaust System
  • Single Dual: Dual
  • Sound Level:  Aggressive / Moderate
  • System Type: Cat-back
  • Tip Diameter (in): 4
  • Tip Quantity: 2
  • Tubing Diameter (in): 2.5
  • UPC: 700042018901
  • California Proposition 65 Chemical Name: Chromium (hexavalent compounds) / Nickel (Metallic)
  • California Proposition 65 Required: Yes
  • Part Number: 17367

    Product Description

    For the person who wants the aggressive look of a NASCAR race truck along with all the benefits that a Flowmaster Cat-back exhaust system provides. D.O.S.S. (Dual out same side) systems are the perfect choice. This American Thunder system features a Super 50 Series performance muffler that delivers a moderately aggressive exterior sound with a moderate interior tone, which is suited to the enthusiast who wants their performance to be heard. The dual 2.50-inch mandrel-bent tailpipes exit in front of the right side rear tire and are finished off with dual 3.00-inch polished stainless steel tips. Like all Flowmaster systems, the benefits include improved throttle response, power and mileage. Designed for an easy fit, the system includes all necessary parts and hardware for easy installation and is covered by our 3-year Limited Warranty.


    • Includes Hangers and Hardware for an Easy Installation
    • Mandrel-bent 16-gauge Aluminized Steel Tubing
    • Moderately Aggressive Exterior Exhaust Tone
    • Dyno Tuned for Maximum Performance
    • Super 50 Series Performance Muffler
    • Uses the Factory Hanger Locations
    • 3-year Limited Warranty
    • Easy Installation

      Redline360 is an authorized Flowmaster dealer and sells only genuine Flowmaster products.

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      Prop 65 Warning WARNING: Cancer and Reproductive Harm -

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