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6.7 Cummins 4 Inch DPF Back Exhaust 409 SS AFE 49-42006
6.7 Cummins 4 Inch DPF Back Exhaust 409 SS AFE 49-42006 $660.00
Fits: 6.7 Cummins 2007.5-2012

2007.5–2009 Dodge Ram 2500 & 3500 6.7L Cummins Performance Exhaust Systems

Lower exhaust gas temperatures (EGTs), eliminate restrictive factory flow bottlenecks, and unleash a deep, clean inline-six exhaust note with premium 2007.5–2009 6.7L Cummins 3rd Gen performance exhaust systems from Full Force Diesel. Heavy-duty Ram 2500 and 3500 trucks operating under intense commercial towing workloads, hauling heavy trailers, or running custom engine tuning generate massive volumes of hot exhaust gases that choke in stock, small-diameter tubing. Over years of heavy-duty use, factory exhaust pipes scale, rust, and trap thermal energy, driving up under-hood and cylinder temperatures. Upgrading to a full mandrel-bent performance exhaust system optimizes gas scavenging velocity and protects your engine's thermal limits.

Advanced Flow Dynamics: Mandrel-Bent Piping and Large-Diameter Tubing

Transitioning away from a restrictive factory exhaust layout to a high-capacity performance kit completely transforms your truck's thermal efficiency:

  • Smooth Mandrel-Bent Tubing Construction: Complete exhaust systems utilize precision mandrel-bent stainless or aluminized steel pipes that maintain a uniform inner diameter through every turn, completely eliminating the pinching and restriction found in crushed factory tubing.

  • Drastic EGT Reductions and Quick Turbo Spool: By opening up the pathway from the turbo downpipe all the way to the rear exit, these systems rapidly evacuate hot exhaust, dropping sustained EGTs during heavy towing and drastically improving variable geometry turbocharger (VGT) spool-up.

Heavy-Duty Durability and Modular System Hardware

Our selection of complete exhaust kits features rugged hardware engineered for a secure, long-lasting installation:

  • Corrosion-Resistant Stainless and Aluminized Options: Built from heavy-gauge T304 or T409 stainless steel or heavy-wall aluminized tubing designed to withstand harsh road salt, winter slush, and intense thermal cycling without rotting out.

  • Complete Mounting Kits and Band Clamps: Supplied with heavy-duty hanger rods, robust band clamps, and optional free-flowing mufflers or straight-pipe delete sections for a clean, rattle-free installation right out of the box.

At Full Force Diesel, we carry the rugged, street-tested mechanical hardware and machine-shop-certified components your transitional 3rd Generation inline-six needs to evacuate heat efficiently. Explore our complete selection of 2007.5–2009 6.7L Cummins 3rd Gen performance exhaust systems and complete kits above to secure your truck's exhaust flow today.