Exhaust Kit for Dodge Ram 1500 Ram 2500 (2004-2008) 5.7L

High-Flow Dual Muffler-Back Exhaust Kit for 2004-2008 Dodge Ram 1500, Ram 2500 (DR/DH)

What it Does: The dual muffler-back exhaust kit replaces the restrictive factory muffler and single tailpipe on the 2004-2008 Ram 1500 and Ram 2500 to reduce exhaust backpressure and optimize scavenge efficiency on 5.7L V8 applications.

The Stock Dodge Ram 1500, Ram 2500 Exhaust Restriction

Factory exhaust routing on the third-generation DR/DH platform relies on a heavily baffled, chambered single-exit muffler paired with press-bent tubing. Under sustained load or towing conditions, the 5.7L HEMI V8 produces excessive exhaust gas volume that encounters boundary-layer turbulence and thermal buildup at these pinch points. This restrictive design dampens acoustic scavenging and creates parasitic pumping losses across the mid-to-high RPM range.

The Engineering Solution

This system replaces the stock bottleneck with a high-flow Flowsound two-chamber muffler featuring a single 3-inch inlet split into dual 2.5-inch outlets. The paired tailpipes are manufactured from heavy-gauge aluminized steel with smooth mandrel bends to maintain constant cross-sectional area and laminar gas velocity. Tailpipes route cleanly under the rear chassis parallel to the frame rails, engineered specifically to clear factory-size spare tires and OEM receiver hitches on all wheelbase configurations.

What's Included

• 1 Flowsound 2-chamber muffler (single 3" inlet, dual 2.5" outlets)
• 2 aluminized mandrel-bent two-piece 2.5" tail pipes (slip-together)
• 8 muffler clamps
• 1 larger exhaust clamp
• 4 rubber-insulated hangers

Technical Specifications

Compatibility

• 2004-2008 Dodge Ram 1500 5.7L V8 (Gasoline, Factory Single-Inlet Muffler Only)
• 2004-2008 Dodge Ram 2500 5.7L V8 (Gasoline, Factory Single-Inlet Muffler Only)

Frequently Asked Questions & Fitment Warnings

Does this fit the DR/DH Ram 1500, Ram 2500?

Yes, this is designed for the 2004-2008 Dodge Ram 1500 and Ram 2500 equipped with the 5.7L HEMI gasoline engine. Excluded: Diesels, V6 or 4.7L models, and any trucks factory-equipped with dual-inlet mufflers.

Is this system a direct bolt-on installation?

No, this is not a direct bolt-on kit; an experienced installer may need to cut or fabricate adapter sections, and exhaust tips are not included.

The Dodge Truck Caliber

Built for the harsh thermal cycles and high-load demands of work trucks, this aluminized dual setup withstands heavy towing heat while delivering balanced backpressure control.