FASS Titanium Signature Series Diesel Fuel System 240GPH, (70-75 PSI), GM Duramax 6.6L 2020-2023, 900-1200hp

WARNING! This system is designed for the 2020-2023 L5P Duramax with aftermarket tuning. If your truck doesn’t have an aftermarket tune that can delete specific codes, you may experience an MIL after FASS installation. Consult your calibration supplier before installation.

The Titanium Signature Series diesel fuel systems are top-notch in the industry, boasting less than a 2% failure rate. Our FASS Whisper Technology significantly reduces noise while increasing fuel flow rates, unlike competitors who compromise flow for noise reduction.

Performance Radius Cuts improve fuel flow by minimizing air and vapor reintroduction and preventing eddy currents. FASS systems are the only ones using this exclusive technique, avoiding restrictions caused by standard connectors.

Mass Flow Return technology keeps fuel continuously polished by returning unused fuel to the tank after filtration, ensuring clean fuel delivery, even in extreme cold.

Mounting is made easy with our bolt-on brackets, eliminating the need for drilling or welding. All brackets are made from machined steel for superior strength.