FASS Titanium Signature Series Diesel Fuel System (70-75 PSI)GM Duramax 6.6L 2020-22 Capacity:140 gph FASS Whisper Technology was in

FASS Whisper Technology was in development and testing for over two and a half years to meet FASS Fuel System's high quality and durability standards

Built In Fuel Pressure Port

Fuel pressure adjustments are as simple as turning our clicker style knob and can be locked in place with the adjustable detent

Oil Color Red

FASS Titanium Signature Series Diesel Fuel System (70-75 PSI)GM Duramax 6.6L 2020-22 Capacity:140 gph FASS Whisper Technology was inThe Titanium Signature Series diesel fuel system was engineered by FASS Fuel Systems to be the top performing, longest lasting and most reliable aftermarket filtration system in the diesel industry. Backed by our limited lifetime warranty the Titanium Signature Series System is capable of supporting your GM Duramax 6. 6L diesel engine with enough fuel for multiple fueling system upgrades. A Titanium Signature Series System also offers advanced