Important Update on US Tariffs and Pricing DETAILS ]

855.444.6872 Contact Us Mon-Sat 10a-6p
DRIVEN BY CARE

Flowmaster 1999-2003 Ford F-150 American Thunder Cat-Back Exhaust System 17367

Flowmaster 1999-2003 Ford F-150 American Thunder Cat-Back Exhaust System 17367
Flowmaster 1999-2003 Ford F-150 American Thunder Cat-Back Exhaust System 17367Flowmaster 1999-2003 Ford F-150 American Thunder Cat-Back Exhaust System 17367Flowmaster 1999-2003 Ford F-150 American Thunder Cat-Back Exhaust System 17367
$1,053.99 ea
NEWARRIVING SOONEstimated Ship Date 07/14/2025 (If Ordered Today)2 Available from HOLLEY PERFORMANCE PRODUCTS as of 06/23/2025
Model: 4004984
Select a Vehicle or refer to the Vehicle Fitment Tab below to verify that this part fits your vehicle.
OVERSIZE 1
STORE PICKUP
[More Info]
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.
Features:
  • 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
Fits 1999-2004 Ford Lightning with 5.4L supercharged engine, fits 2/4 wheel drive.
Installation Notes:
Fits 1999-2004 Ford Lightning with 5.4L supercharged engine, fits 2/4 wheel drive.
About Flowmaster

Manufacturer of performance exhaust systems, mufflers, performance air intakes, turbo boost modules, catalytic converters, race mufflers, headers and numerous exhaust accessories for late model cars, trucks, off-road, Jeeps, SUV’s, classic muscle cars, powersports vehicles and more. Flowmaster® gives you lots of exhaust choices with 12 designs of chambered mufflers, 3 styles of our exclusive “laminar-flow” mufflers and a new line of FlowFX “straight-through” performance mufflers, along with 5 sound categories of exhaust systems, giving you the customer, the power to custom tailor the sound of your vehicle whether you prefer mild, moderate or aggressive tones and sound levels. Since 1983, Flowmaster is the company you can trust, and has led the industry in offering only the best products you can buy for your vehicles.

Downloads:

Download Name File Size
fm_warranty_general.pdf88.58KB
17367_instructions.pdf1.7MB

Vehicle Fitment:

The Vehicle Fitment Guide is to be used as a general reference. The data has been provided by our suppliers and manufacturers and may contain errors or incorrect data. Always refer to a professional to verify correct fitment for your vehicle.
Make Model Submodel Years Engine
Ford F-150 Lightning 1999 5.4L / 330 / V8
Ford F-150 Lightning 2000 5.4L / 330 / V8
Ford F-150 Lightning 2001 5.4L / 330 / V8
Ford F-150 Lightning 2002 5.4L / 330 / V8
Ford F-150 Lightning 2003 5.4L / 330 / V8

Specifications:

2WD/4WD 2WD/4WD
California Proposition 65 Chemical Name Chromium (hexavalent compounds), Nickel (Metallic)
California Proposition 65 Required Yes
Emission Code 5
Exhaust Series American Thunder
Exit Position Dual Same Side Exit
Heat Shield No
Inlet Diameter (in) 2.5
Inlet Position Dual
Material Aluminized Steel
Muffler Part Number Kit Only
Muffler Quantity 1
Muffler Series 50 Series HD
Outlet Diameter (in) 2.5
Part Type Exhaust System Kit
Product Type Exhaust System
Proposition 65 www.P65Warnings.ca.gov
Single Dual Dual
Sound Level Aggressive / Moderate
System Type Cat-back
Tip Diameter (in) 4
Tip Quantity 2
Tubing Diameter (in) 2.5
Warranty Time 36 Months

Reviews:

Write a Review
* Your Name:
* Email (This will not be displayed)
* Rating:
Comments:

Ask a question about

Flowmaster 1999-2003 Ford F-150 American Thunder Cat-Back Exhaust System 17367: