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Flowmaster 2006-2008 Dodge Ram 1500 American Thunder Cat-Back Exhaust System 817423

Flowmaster 2006-2008 Dodge Ram 1500 American Thunder Cat-Back Exhaust System 817423
Flowmaster 2006-2008 Dodge Ram 1500 American Thunder Cat-Back Exhaust System 817423Flowmaster 2006-2008 Dodge Ram 1500 American Thunder Cat-Back Exhaust System 817423Flowmaster 2006-2008 Dodge Ram 1500 American Thunder Cat-Back Exhaust System 817423
$1,507.99 ea
NEWARRIVING SOONEstimated Ship Date 08/29/2025 (If Ordered Today)5 Available from HOLLEY PERFORMANCE PRODUCTS as of 08/12/2025
Model: 4005317
Select a Vehicle or refer to the Vehicle Fitment Tab below to verify that this part fits your vehicle.
OVERSIZE 2
STORE PICKUP
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This Flowmaster American Thunder® cat-back exhaust system for the 2006-2008 Dodge Ram 1500 trucks with the 5.7L Hemi engine is perfect for the person looking for a deep aggressive exterior sound with a moderate interior tone, and with all of the performance benefits that you would expect from Flowmaster®. This bolt-on DOR/DOS (Dual Out Rear or Dual Out Side) emissions-legal exhaust system features 16-gauge mandrel-bent stainless steel tubing flowing into a specially designed Super 50™ Series performance muffler with dual 2.50-inch stainless steel tailpipes which use the factory hanger locations for an easy installation. The tailpipes exit either behind the rear wheels, which is ideal for towing, or straight out the back under the rear bumper for a muscular look. The system is finished off with a pair of large 3.00-inch polished stainless steel tips. The exhaust system is covered by our Lifetime Limited Warranty and includes all necessary parts and hardware for an easy installation you can do at home. For those who prefer aluminized steel construction with a 3-year Limited Warranty, check out exhaust system #17423. Note: Fits 2/4 wheel drive models all wheelbases, Except the MegaCab model.
Features:
  • Includes Hangers and Hardware for an Easy Installation
  • Mandrel-bent 16-gauge Stainless Steel Tubing
  • Dyno Tuned for Maximum Performance
  • 3.00-inch Polished Stainless Steel Tips
  • Super 50 Series Performance Muffler
  • Uses the Factory Hanger Locations
  • Moderate Exterior Exhaust Sound
  • Choice of Dual Tailpipe Exits
  • Easy Installation
Fits 2006-2008 Dodge Ram 1500 with 5.7L Hemi engine, fits 2/4 wheel drive models and all wheelbases except MegaCab models.
Installation Notes:
Fits 2006-2008 Dodge Ram 1500 with 5.7L Hemi engine, fits 2/4 wheel drive models and all wheelbases except MegaCab models.
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
817423_instructions.pdf3.26MB

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 2006 5.7L / 345 / V8 For 2005 to 2008 1500 Mega Cab with 5.7L use part number 17438 or 817438
Dodge Ram 1500 Laramie 2007 5.7L / 345 / V8 For 2005 to 2008 1500 Mega Cab with 5.7L use part number 17438 or 817438
Dodge Ram 1500 Laramie 2008 5.7L / 345 / V8 For 2005 to 2008 1500 Mega Cab with 5.7L use part number 17438 or 817438
Dodge Ram 1500 SLT 2006 5.7L / 345 / V8 For 2005 to 2008 1500 Mega Cab with 5.7L use part number 17438 or 817438
Dodge Ram 1500 SLT 2007 5.7L / 345 / V8 For 2005 to 2008 1500 Mega Cab with 5.7L use part number 17438 or 817438
Dodge Ram 1500 SLT 2008 5.7L / 345 / V8 For 2005 to 2008 1500 Mega Cab with 5.7L use part number 17438 or 817438
Dodge Ram 1500 ST 2006 5.7L / 345 / V8 For 2005 to 2008 1500 Mega Cab with 5.7L use part number 17438 or 817438
Dodge Ram 1500 ST 2007 5.7L / 345 / V8 For 2005 to 2008 1500 Mega Cab with 5.7L use part number 17438 or 817438
Dodge Ram 1500 ST 2008 5.7L / 345 / V8 For 2005 to 2008 1500 Mega Cab with 5.7L use part number 17438 or 817438
Dodge Ram 1500 SXT 2008 5.7L / 345 / V8 For 2005 to 2008 1500 Mega Cab with 5.7L use part number 17438 or 817438
Dodge Ram 1500 Sport 2006 5.7L / 345 / V8 For 2005 to 2008 1500 Mega Cab with 5.7L use part number 17438 or 817438
Dodge Ram 1500 Sport 2007 5.7L / 345 / V8 For 2005 to 2008 1500 Mega Cab with 5.7L use part number 17438 or 817438
Dodge Ram 1500 TRX4 2006 5.7L / 345 / V8 For 2005 to 2008 1500 Mega Cab with 5.7L use part number 17438 or 817438
Dodge Ram 1500 TRX4 2007 5.7L / 345 / V8 For 2005 to 2008 1500 Mega Cab with 5.7L use part number 17438 or 817438

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 Out Rear / Dual Out Side
Heat Shield No
Inlet Diameter (in) 3
Material 409 Stainless 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) 3
Tip Quantity 2
Tubing Diameter (in) 2.5
Warranty Limited Lifetime (Lifetime)

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