Flo~Pro 5" Cat Back Single Exhaust | 2004.5-2007 Dodge Ram 2500/3500 5.9L Cummins

The Flo~Pro 5" Cat Back Single Exhaust is a direct-fit exhaust upgrade built specifically for the 2004.5-2007 Dodge Ram 2500/3500 5.9L Cummins. Fabricated in Alberta, Canada from U.S.-sourced heavy-gauge steel tubing, it replaces restrictive factory piping with a full 5" flow path to help lower EGTs, sharpen throttle response and give your diesel a deep, clean, aggressive tone.

What This Cat Back Does

A cat-back system replaces the exhaust from the back of the catalytic converter to the tailpipe, opening up the rear of the system for better flow and a stronger diesel tone.

Build It Your Way

This kit is available in the following configurations. Choose the options that fit how you drive:

Material

• 16-Gauge Aluminized Steel: heavy-gauge U.S. steel with a corrosion-resistant aluminized coating. Tough, great value, and ideal for daily driving and towing.
• T409 Stainless Steel: premium U.S.-sourced stainless for superior corrosion resistance and long life through salted winter roads and high-heat towing.

Muffler

• With Muffler: a high-flow muffler keeps the sound deep and aggressive while taking the harsh edge off at highway cruise.

Fitment & Specs

• Years: 2004.5-2007
• Make: Dodge Ram
• Models: 2500, 3500
• Engine: 5.9L Cummins
• Configuration: Pickup
• Tubing Diameter: 5"
• Exhaust Style: Single exit

Why Flo~Pro

• Manufactured in Alberta, Canada, never offshore
• U.S.-sourced 16-gauge aluminized or T409 stainless steel tubing and steel hangers
• Model-specific fitment, adjusted for each production change so it bolts up right the first time
• Pre-welded contour bends and contour-bent hangers for OE-style alignment
• Upgraded flanges and lap-joint clamps for a secure, leak-free install
• Improved airflow and lower EGTs, especially under load and when towing
• Signature Flo~Pro tone: deep, clean and aggressive, never raspy or hollow