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Flowmaster 2004-2005 Dodge Ram 1500 American Thunder Cat-Back Exhaust System 17398

Flowmaster 2004-2005 Dodge Ram 1500 American Thunder Cat-Back Exhaust System 17398
Flowmaster 2004-2005 Dodge Ram 1500 American Thunder Cat-Back Exhaust System 17398
$903.99 ea
NEWARRIVING SOONEstimated Ship Date 08/26/2025 (If Ordered Today)6 Available from HOLLEY PERFORMANCE PRODUCTS as of 08/06/2025
Model: 4004991
Select a Vehicle or refer to the Vehicle Fitment Tab below to verify that this part fits your vehicle.
OVERSIZE 1
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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 all mandrel-bent aluminized steel tubing flowing into a specially designed Super 40 Series performance muffler with dual 2.50-inch tailpipes finished off with a pair of large 3.00-inch polished stainless steel tips. The system delivers a moderately aggressive exterior sound with a moderate interior tone and is suited to the enthusiast who wants their performance to be heard. Like all Flowmaster systems, the benefits include improved throttle response, power and mileage. Designed for an easy fit, these systems include all necessary parts, hardware for a quick and easy installation.
Features:
  • Includes Hangers and Hardware for an Easy Installation
  • Mandrel-bent 16-gauge Aluminized Steel Tubing
  • Moderate to Aggressive Exterior Exhaust Tone
  • Dual 3.00-inch Polished Stainless Steel Tips
  • Dyno Tuned for Maximum Performance
  • Super 40 Series Performance Muffler
  • Uses the Factory Hanger Locations
  • Quick and Easy Installation
Fits 2004-2005 Dodge Ram 1500 with 5.7L Hemi engine, fits 2 wheel drive models only with either crew cab/short bed or standard cab/long bed configuration on 140-inch wheelbase.
Installation Notes:
Fits 2004-2005 Dodge Ram 1500 with 5.7L Hemi engine, fits 2 wheel drive models only with either crew cab/short bed or standard cab/long bed configuration on 140-inch wheelbase.
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
17398_instructions.pdf3.23MB

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 Fitment Notes
Dodge Ram 1500 Laramie 2005 5.7L / 345 / V8 Crew cab/Short bed and Standard cab/Long bed only.
Dodge Ram 1500 SLT 2004 5.7L / 345 / V8 Crew cab/Short bed and Standard cab/Long bed only.
Dodge Ram 1500 SLT 2005 5.7L / 345 / V8 Crew cab/Short bed and Standard cab/Long bed only.
Dodge Ram 1500 ST 2004 5.7L / 345 / V8 Crew cab/Short bed and Standard cab/Long bed only.
Dodge Ram 1500 ST 2005 5.7L / 345 / V8 Crew cab/Short bed and Standard cab/Long bed only.

Specifications:

2WD/4WD 2WD
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) 3
Material Aluminized Steel
Muffler Part Number Kit Only
Muffler Quantity 1
Muffler Series Super 40 Series
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
System Type Cat-back
Tip Diameter (in) 3
Tip Quantity 2
Tubing Diameter (in) 2.5
Warranty Time 36 Months

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