Sierra 2500 HD

Factory coolant hoses are prone to abrasions and cracking over time that could lead to cooling system failures, but this Duramax 6.6L radiator pipe kit is the perfect way to ensure that your cooling system is reliable for years to come. This upper...

Factory coolant hose "T" fittings are molded hose or made out of plastic and are prone to cracking at junctions, causing coolant loss. Replace your worn or leaky factory coolant hose system with PPE's Performance Silicone Coolant Hose Kit.Perfect for...

This is the Raptor-4G RP-150 fuel system for the 2011-2014 6.6L Duramax. This system mounts to the frame jig in front of the fuel tank for a clean looking installation. The suction line connects to the factory suction fitting on top of the fuel module...

Once you've installed an aftermarket Fuel Filtration System such as our FASS Titanium Series, the use of the factory fuel filter is no longer required and can be removed. Because your Duramax factory fuel filter is located after our filtration System you...

A FASS Fuel Systems can be a beneficial upgrade for your GM Duramax LML diesel engine, this is because your Duramax doesn't come with a factory System like other diesels. This requires your CP3 injection System to pull your fuel under a vacuum, adding...

Flow and Performance:Constructed of 3"mandrel-bent aluminum tubing for maximum flow then, powder-coated for a nice finish. The high-temp wrinkle-black powder-coating also insulates the tubes from engine heat and protects the tube from corrosion. Also...

Our FASS Signature Series Adjustable Diesel Fuel Pumps are designed to be the most versatile high performance fuel pump on the market that allows for adjustable fuel pressures to meet the demand of high performance GM Duramax 6.6L applications...

The Sinister Diesel LML Intake Bridge replaces the restrictive stock piping on your GM 6.6L Duramax Diesel with larger diameter CNC mandrel bent aluminum tubing that optimizes airflow after the throttle valve and heater. The increased diameter of the air...

Perfect Fit:Utilizes the factory mounting locations for a hassle-free installation. Includes high quality stainless steel T-bolt clamps and heavy-duty 5-Ply polyester reinforced couplings for strength and durability. The tubes also work with OEM or aFe's...

This is the Raptor-4G RP-100 fuel system for the 2011-2014 6.6L Duramax. This system mounts to the frame jig in front of the fuel tank for a clean looking installation. The suction line connects to the factory suction fitting on top of the fuel module...

Improve the power and efficiency of your Duramax with the Mishimoto hot-side intercooler pipe and boot kit. The factory hot-side pipe for the 2011-2016 Chevrolet/GMC 6.6L Duramax LML features numerous restrictive bends and chokes the engine with 2.5"...

Mishimoto has expanded their Duramax performance parts line to include the performance intercooler for the 2011-2016 Chevrolet/GMC 6.6L Duramax LML. High intake and exhaust gas temperatures can reduce performance and potentially cause engine damage...