FASS Signature Series Adjustable Fuel System
Built for high-performance and competition applications, the FASS Signature Series Adjustable Fuel System delivers high-volume fuel flow with adjustable pressure for 2001-2016 GM 6.6L Duramax trucks. Using the same proven motor found in FASS Titanium Signature Series systems, it provides up to 290 gallons per hour with adjustable fuel pressure from 1-75 PSI.
An integrated boost compensation port allows intake manifold pressure to increase fuel pressure under heavy throttle, helping maintain consistent fuel delivery when demand is highest. The included 6061-T6 billet aluminum bulkhead fitting combines the fuel pickup and return connections, eliminating the need to cut the factory filler neck. An adjustable-length PTFE pickup tube accommodates different tank depths and allows operation down to approximately 1/8 tank when properly installed.
Key Features
- High-performance options of 100 to 290 gallon-per-hour fuel flow
- Adjustable fuel pressure from 1-75 PSI
- Boost compensation port helps maintain fuel pressure under heavy throttle
- FASS Whisper Technology for reduced pump operating noise
- Built-in fuel pressure gauge port
- 6061-T6 billet aluminum bulkhead fitting combines fuel pickup and return connections
- 5/8" suction tube with 1/2" fuel return port
- Adjustable PTFE pickup tube accommodates varying fuel tank depths
- Bulkhead design eliminates the need to cut the factory filler neck
- All required mounting hardware included
Benefits
The FASS Adjustable Diesel Fuel System provides the fuel volume and pressure control required for heavily modified Duramax engines. Adjustable pressure and boost compensation allow fuel delivery to be tailored to demanding race and competition setups while maintaining consistent supply under high load.
Fitment
Fits 2001-2016 GM trucks equipped with the 6.6L Duramax diesel engine.
Important: This is a fuel delivery system only and must be used with the factory fuel filter. Fuel pressure should only be adjusted when a fuel pressure gauge is installed.
What's Included
- FASS Signature Series Adjustable diesel fuel system
- 6061-T6 billet aluminum bulkhead fitting
- 5/8" suction tube and adjustable PTFE pickup tube
- Mounting hardware
