MBRP Muffler – Armor Plus – 2004–2007 Dodge Ram 2500/3500 Cummins

Free shipping on this MBRP Armor Plus muffler for 2004–2007 Ram 2500/3500 Cummins.

Built for the 5.9L Cummins platform, this Armor Plus muffler uses T409 stainless steel to handle heat, load, and long‑term daily use. It’s a direct‑fit replacement that lines up with factory hangers and geometry, giving you a cleaner tone, better flow, and a tougher build than stock.

The straight‑through internal design keeps exhaust velocity strong while delivering a deeper, more controlled sound that works for towing, hauling, and everyday driving.

Key Specs & Features

• Direct‑fit muffler for:

  • 2004–2007 Dodge Ram 2500 Cummins

  • 2004–2007 Dodge Ram 3500 Cummins

• Armor Plus T409 stainless steel

• Straight‑through internal core for improved flow

• Welded construction for long‑term durability

• Maintains OEM alignment and clearance

• Ideal for tow rigs, work trucks, and daily‑driven 5.9L builds

Verified Fitment

• 2004 Ram 2500 / 3500 Cummins

• 2005 Ram 2500 / 3500 Cummins

• 2006 Ram 2500 / 3500 Cummins

• 2007 Ram 2500 / 3500 Cummins

Warranty

Armor Plus T409 stainless steel includes a Lifetime Warranty. Surface coloration from heat is normal for T409 and not considered a defect.

Why It Works

The 5.9L Cummins responds well to reduced restriction. This muffler improves tone and flow without adding drone, and the T409 stainless build gives you long‑term reliability for trucks that see real miles — towing, job‑site use, and highway runs.

Important Notes

• Direct‑fit for listed Cummins models only

• Not compatible with gas engines

• T409 stainless will show natural heat cycling over time

• Professional installation recommended for best alignment