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Its hard to imagine that your Duramax didn't come from the factory with a low pressure lift pump, but its true. It was determined that the CP3 injection pump did an adequate job on its own. Well, if is good enough for you, then maybe it is. However, in stock form, and especially with the addition of even a mild programmer, performance gains are severely limited due to the lack of a lift pump. Cure this issue with the addition of a FASS lift pump!
The D-Max Flow Enhancer has been designed to provide your Duramax engine with a constant 8 PSI fuel pressure, aiding the injection system by reducing the amount of work your factory injection pump has to perform, extending its expected life and improving performance gains from aftermarket tuning products. Since the D-Max Flow Enhancer is a "pusher" pump, all fuel is placed under pressure, helping prevent the introduction of air and vapor.
- ManufacturerFASS Fuel Systems
- Reduces Factory CP3 Workload
- Delivers Fuel Under Pressure
- Improves Fuel Flow
- Improves Fuel Delivery and Performance
- Reduces Air and Vapor
- Budget Minded Alternative
- Simple Installation
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How does this compair to the lift pumps with the filter is it the same gpm?? is the only difference that it doesnt have the filter assembly??
Those are going to rate about 100gph of flow at 8-10 psi. We would recommend the pump/filter combo like a FASS Titanium or at least a upgrade to the factory filter(CAT filter)
does this pump come with everything needed for install??
Yes, everything is included for installation purposes.
Will the FASS-DRPEM 990 work on my 2004 LLY duramax. I was given a new one from my friend for free. It is for a stock truck with light towing sometimes. Tkank you for your time.?
No, as that is for a cummins application and are different in pressure and mounting.