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

FASS Whisper Technology (FWT) was engineered to meet the stringent demands of today's quiet diesel engines

Urethane mounts are hard and squeak

the unique design makes installation quick and simple for even beginner mechanics

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

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