New products

  A FASS Fuel Systems can be a beneficial upgrade for your GM Duramax 6.6L diesel engine, this is because your Duramax doesn’t come with a factory ...

Description A FASS Fuel Systems can be a beneficial upgrade for your GM Duramax 6.6L diesel engine, this is because your Duramax doesn’t come with ...

DESCRIPTION FASS Replacement banjo bolts for a 24V or 12V Cummins.

Description Our FASS Fuel Systems Bulkhead Fitting and Viton suction tube are designed to mount directly to the fuel tank module and provide an imp...

Description The STK-1002 (Suction Tube Kit), machined from 6061 T-6 Billet Aluminum, is a Bulkhead Fitting comprised of a 5/8″ Suction Tube along w...

 Description Our Direct Replacement Pump Relocation Kit allow for your new DRP pump to be placed further back, closer to the fuel tank. This will ...

Description FASS High Output Heater Disk

Description Titanium Series Optional Electric Diesel Fuel Heater Kit FASS

Description The Titanium Signature Series diesel fuel lift pump was engineered by FASS Fuel Systems to be the top performing, longest lasting and m...

  The Titanium Signature Series diesel fuel lift pump was engineered by FASS Fuel Systems to be the top performing, longest lasting and most reliab...

  NOTE: If the truck has been retrofitted with an in-tank pump, you will need to purchase a TS D07 165G Kit. The Titanium Signature Series diesel f...

Description The Titanium Signature Series diesel fuel lift pump was engineered by FASS Fuel Systems to be the top performing, longest lasting and m...

Description The Titanium Signature Series diesel fuel system Featuring our Revolutionary Whisper Technology was engineered by FASS Diesel Fuel Syst...

Description The Titanium Signature Series diesel fuel system was engineered by FASS Diesel Fuel Systems to be the top performing, longest lasting a...

Description The Titanium Signature Series diesel fuel system was engineered by FASS Diesel Fuel Systems to be the top performing, longest lasting a...

 DESCRIPTION S&B cold air intakes are engineered to minimize air restriction and increase air flow far better than your stock system. Our int...

Description S&B cold air intakes are engineered to minimize air restriction and increase air flow far better than your stock system. Our intake...

Description S&B cold air intakes are engineered to minimize air restriction and increase air flow far better than your stock system. Our intake...

 Description HPTuners Transmission Tuning for your 2017-2023 L5P Duramax You must have an unlocked T87 or T93 TCM to load custom tuning.

 Description Engine Tuning file only.  An HP Tuners Unlocked PCM or HP Tuners Unlock Cable and MPVI3 are required to load tuning. CAN Bus Plugs Ar...

 Description Improve the drivability and power handling of your 68RFE transmission with increased line pressures, adjusted shift points and conver...

 Description Enhance the drivability and power handling of your AISIN, 68RFE, Allison, or 2020-2022 6.7L Powerstroke transmission with our custom ...

 Description Improve the drivability and power handling of your 68RFE transmission with increased line pressures, adjusted shift points and conver...

Description Maximize the potential of your 2020-2022 6.7L Powerstroke with our custom transmission tuning!Noticeable improvements in power delive...