If you want the best, this is it. The NX Stage 1 EFI nitrous system is the top of the line EFI power booster on the market. From the highest flowing solenoids, to our patented Shark nozzle, this system screams nothing but quality. NX...

If you want the best, this is it. The NX Stage 1 EFI nitrous system is the top of the line EFI power booster on the market. From the highest flowing solenoids, to our patented Shark nozzle, this system screams nothing but quality. NX...

Fleece Performance billet rocker arm bridges for the GM Duramax. These bridges offer a massive 2.5-time strength improvement over factory bridges. Machined from billet 8620 steel, the bridges are surface ground for flatness, feature improved oiling to the valve stems, and case hardened and...

Introducing our Freedom Series cylinder heads for the 6.6L Duramax! Each cylinder head is manufactured in our state-of-the-art Freedom Racing Engine shop and is guaranteed to meet or exceed factory specifications. All heads are meticulously inspected, pressure and leak tested, and are equipped with...

Introducing our Freedom Series cylinder heads for the 6.6L Duramax! Each cylinder head is manufactured in our state-of-the-art Freedom Racing Engine shop and is guaranteed to meet or exceed factory specifications. All heads are meticulously inspected, pressure and leak tested, and are equipped with...

Introducing our Freedom Series cylinder heads for the 6.6L Duramax! Each cylinder head is manufactured in our state-of-the-art Freedom Racing Engine shop and is guaranteed to meet or exceed factory specifications. All heads are meticulously inspected, pressure and leak tested, and are equipped with...

Introducing our Freedom Series cylinder heads for the 6.6L Duramax! Each cylinder head is manufactured in our state-of-the-art Freedom Racing Engine shop and is guaranteed to meet or exceed factory specifications. All heads are meticulously inspected, pressure and leak tested, and are equipped with...

Replacement connector with 4.5 inch pigtail for use in multiple locations on the Duramax, Ram with Cummins, and other GM vehicles. Produced in-house, our manufacturing process includes fully automated wire cutting and terminal crimping to ensure you get the highest quality replacement parts you...

PureFlow AirDog II-5G 11-14 Chevrolet 6.6L Duramax DF-165-5G Fuel Pump

PureFlow AirDog II-5G 15-16 Chevrolet 6.6L Duramax DF-165-5G Fuel Pump

PureFlow AirDog II-5G 11-14 Chevrolet 6.6L Duramax DF-220-5G Fuel Pump

PureFlow AirDog II-5G 15-16 Chevrolet 6.6L Duramax DF-220-5G Fuel Pump

PureFlow AirDog II-5G 11-14 Chevrolet 6.6L Duramax DF-100-5G Fuel Pump

PureFlow AirDog II-5G 15-16 Chevrolet 6.6L Duramax DF-100-5G Fuel Pump

PureFlow AirDog 01-10 Chevrolet 6.6L Duramax FP-150-4G Fuel Pump

PureFlow AirDog II-5G 01-10 Chevrolet 6.6L Duramax DF-165-5G Fuel Pump

PureFlow AirDog II-5G 01-10 Chevrolet 6.6L Duramax DF-220-5G Fuel Pump

PureFlow AirDog II-5G 01-10 Chevrolet 6.6L Duramax DF-100-5G Fuel Pump

FASS Fuel Systems Dura-Max Diesel System 2001-2010 GM Duramax 6.6L (DMAX7001) Part No: DMAX7001 Duramax diesel engines do not come with a factory System, this is why Duramax owners see such great performance and economy gains after installing an aftermarket diesel fuel System. When...

2001-2004 LB7 Injection Lines complete set of 8- Over time LB7 Injection lines corrode and break, they are a leading cause of contamination when changing the Injectors. So if you are changing your injectors, or have a line failure we've got you covered with...

LLY Duramax High Pressure Injection Line (Number 4 and Number 5). Replacement high pressure fuel lines from Fleece Performance. These are a direct replacement for your cracked, broken, or leaking injector lines. Application Notes: Replaces GM Part number 97378827 2004.5-2005 Chevrolet Silverado 2500 2004.5-2005...