Skip to product information
1 of 6

Flowmaster

Flowmaster 03-08 Dodge RAM Truck HEMI American Thunder DOSR Cat-Back Exhaust System

Flowmaster 03-08 Dodge RAM Truck HEMI American Thunder DOSR Cat-Back Exhaust System

Regular price $ 899.95
Regular price $ 989.95 Sale price $ 899.95
Free shipping on orders over $99 (contiguous U.S.) — flat $10.99 under $99. Shipping details
Quantity
✓ In Stock Ships from manufacturer
Ships from Flowmaster — this item ships direct from the manufacturer. It usually goes out quickly, but because it leaves their warehouse rather than ours, delivery can take a little longer than our in-stock parts.

This aluminized steel cat-back exhaust system fits 2003-2012 Dodge Ram 2500/3500 with the 5.7L Hemi engine, and also fits 2005-2008 Dodge Ram 1500 MegaCab with 5.7L engine. As an American Thunder system, it will provide improved performance and fuel economy while producing a moderate tone inside and outside the truck. Constructed from 16-gauge mandrel-bent aluminized steel tubing flowing into a Super 50 Series™ muffler. The dual 2.50-inch mandrel-bent tailpipes use the factory hanger locations for an easy installation. The system is finished off with a pair of polished 3.00-inch 304 stainless steel tips and comes with two sets of tailpipe exits giving you the option of two exit styles. Either straight out the back under the bumper, or out to the sides behind the rear wheels, which is ideal for towing applications. Easy to follow instructions and all necessary hardware is provided and the system is backed by our 3-year Limited Warranty.

  • Includes Hangers and Hardware for an Easy Installation
  • Mandrel-bent 16 Gauge Aluminized Steel Tubing
  • Connects After Factory Catalytic Converter
  • Uses the Factory Hanger Locations
  • Moderate Exterior Exhaust Tone
  • Clears the Factory Spare Tire
  • Dual Tailpipe Exit Locations

Vehicle Fitment

  • 2003-2008 Dodge Ram 2500
  • 2003-2008 Dodge Ram 3500
  • 2006-2008 Dodge Ram 1500

Please verify exact fitment for your trim and engine before ordering.

🚚 Vendor Direct Shipment: This item is not stocked in our warehouse and ships directly from the manufacturer. Please allow additional handling time before dispatch.

Manufacturer Part Number: 17438

Images are for illustrative purposes only. Actual product may vary.

⚠ WARNING (California Proposition 65): This product can expose you to chemicals which are known to the State of California to cause cancer and/or birth defects or other reproductive harm. For more information go to www.p65warnings.ca.gov.

Manufacturer's Warranty — Flowmaster

Flowmaster warranty is tiered by material and product line. Lifetime Limited Warranty — stainless steel mufflers (FlowFX series excepted), all stainless steel exhaust systems (FlowFX included), stainless steel pipes, air intake kits and oiled-type filters (cleaning kits excepted), and other stainless steel exhaust accessories (exhaust tips and racing products excepted); this runs for the life of the original vehicle the part was installed on. Three (3) years — aluminized steel mufflers, exhaust systems and pipes, all exhaust tips, other non-race exhaust accessories, and commercial-vehicle applications of aluminized or stainless products. Two (2) years — Delta Force dry air intake filter elements. One (1) year — FlowFX series mufflers, Elite Series headers, and electronic components such as Delta Boost modules. Catalytic converters sold under the Flowmaster brand are excluded from this warranty. Coverage runs from the date of original purchase, to the original purchaser only, and only while the part remains on the vehicle it was originally installed on. Header coverage does not extend to damage caused by exhaust insulating wrap and is void if the header was fitted to a new or rebuilt engine during the initial break-in period. Sound-absorbing material inside “straight-through” mufflers degrades over time; Flowmaster treats that as normal wear, not a material defect. Also excluded: interior and exterior sound levels, cosmetic issues such as coatings and material discoloration, installation on a racing vehicle, improper installation or installation contrary to Flowmaster instructions, alteration, misuse, repair, accident, collision, undercarriage road impact or debris, and willful or negligent acts. To claim, the original purchaser returns the product either to the original retailer or directly to Flowmaster — a Returned Material Authorization (RMA) number must be obtained from Flowmaster first if returning to them — with proof of purchase showing place, price, product and date. Flowmaster's remedy is exchange for the same part number or refund of the purchase price at its option; installation, labor, towing and shipping costs are not covered.

Warranty terms are set by the manufacturer and may change. Full details and claims are handled directly by Flowmaster. Contact us if you need help with a warranty claim.

View full details

Q&A

0 answered questions

No questions yet. Be the first to ask!