2011-2016 GM 6.6L Duramax LML

The FASS Diesel Fuel Systems XL Filter Pack is your all-in-one maintenance solution. Perfect for stocking your shop or prepping for regular servicing, this bundle includes both the new Extreme Water Separator and a matched particulate filter—making it simple to keep your FASS fuel...

Are you loosing rail pressure from a worn out CP4.2 pump? Are you in need of a factory replacement pump? From stock up to 550+HP our Improved Stock LML CP4.2 pumps are the best and most affordable solution for an upgraded pump that won't...

Got a pinched O-ring or corroded check ball?This kit contains our Viton O-rings in two separate sizes (17mm and 30mm) along with a Viton check ball to help get your fuel pump back to proper condition. Kit Includes: 2 x OR-17 (17mm O-ring) 2...

Are you doing head gaskets and don't want to reuse the original injector seals? You are making the right choice. Replacing the injector seals is cheap insurance you won't have an issue when you get the truck back together. Don't risk having to do...

Are you looking for an increase in power without sacrificing drivability or reliability? Well, look no further than our 60% over fuel injectors!   The nozzles are enlarged using abrasive flow honing technology and are hydraulically flow matched to less than 1%. Each nozzle...

Go back to a simpler time, when things worked and you could rely on your Duramax fuel system. Since the introduction of the common rail fuel system in 2001, all Duramax Engines were equipped with a reliable Bosch CP3 high pressure fuel pump. Then...

BD's FleX-Plate is designed to reliably handle up to 1,500 lb-ft of torque. These units are forged billet, precision-balanced and SFI approved for use in race application. Black Oxide coated to resist corrosion and prevents hydrogen embrittlement that can cause cracking, these units will...

Experience performance and durability with the enhanced Duramax exhaust manifolds, specifically designed for the 2001-2016 6.6L Duramax engines. The BD upgraded manifolds not only remove the flow restriction found on the 2001-2006 model driver’s side manifold, but they also increase overall flow on both...

The drop-in, stock-appearing Screamer turbo for the 2011-2016 Duramax utilizes modern turbo technology that delivers increased airflow without compromising on low end response. Boost pressure can be increased to improve horsepower potential. Tests with the same tune and fuel quantity showed increased power output...

For those who desire the absolute best protection against gelled fuel in cold climates. This kit includes both our High Output Electric Heater Disk and Dual Electric Heater Probe Kit, for up to 500 watts of fuel-thawing power!This ULTIMATE Electric Heater Kit is engineered...

Our FASS Fuel Systems 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. Manufactured with the...

After the installation of a FASS Fuel Air Separation System the factory fuel filter is no longer needed and can be easily removed by using this Factory Fuel Filter Delete Kit. Benefits: 1. Delete OEM Filter 2. Eliminate Time and Costs associated w/changing the...

FASS Fuel Systems Drop-In Fleet Filter Pack FLP1000 Part No: FLP1000 Perfect for the shop or keeping your garage stocked, each FASS Fuel FLP3000 contains two (2) (XWS3002XL) Extreme Water Separator Filter and two (2) (CWS1010) Coalescing Water Separator! Designed with convenience in mind,...

FASS Fuel Systems Drop-In Filter Pack FP1000 Part No: FP1000 Perfect for the shop or keeping your garage stocked, each FASS Fuel FP3000 contains one (1) (XWS3002XL) Extreme Water Separator Filter and one (1) (CWS1010) Coalescing Water Separator! Designed with convenience in mind, our...