Dura-Max Flow Enhancer

Features:

• Fits 2011-2016 6.6L Duramax LML
• Provides constant 8 PSI fuel pressure
• Adds external fuel lift pump system
• Reduces strain on factory CP3 pump
• Helps prevent air and vapor intrusion
• Supports improved injector longevity
• Enhances performance from aftermarket tuning
• Pusher pump design for positive pressure
• Improves throttle response and drivability
• Ideal for stock or lightly modified trucks
• Promotes more consistent fuel delivery
• Designed specifically for Duramax applications

Give Your Duramax The Fuel Supply It Should Have Had From The Factory

If you have spent any time around 2011-2016 LML trucks, you know one thing they never came with from the factory is a lift pump. That means your CP3 is forced to pull fuel under vacuum, which can introduce air and vapor into the system over time. The FASS DMAX7002 Dura-Max Flow Enhancer changes that by supplying a steady 8 PSI of fuel pressure directly to the injection system. Instead of the CP3 working overtime just to draw fuel forward, it is now being fed with positive pressure like it should be. Additionally, this pusher pump design helps reduce the chance of aeration, which can play a role in premature injector wear. The result is smoother operation, more consistent power delivery, and better support for tuning upgrades. For stock or lightly modified trucks, this is one of those upgrades that simply makes the entire fuel system happier.

Engineered Positive Fuel Pressure To Support CP3 And Injectors

The DMAX7002 is specifically designed for 2011-2016 GM Silverado and Sierra 2500HD and 3500HD trucks equipped with the 6.6L Duramax LML. From the factory, these engines rely solely on the CP3 injection pump to pull fuel from the tank, which places the system under constant vacuum. By delivering a regulated 8 PSI of positive fuel pressure, the D-Max Flow Enhancer reduces the workload on the CP3 and stabilizes fuel delivery under varying engine demands. Furthermore, maintaining fuel under pressure helps minimize the introduction of air and vapor, which can negatively affect injector performance and longevity. This system is well suited for stock applications and budget minded builds that want improved reliability without stepping up to a full Titanium Series setup. It also complements aftermarket tuning by ensuring a more consistent fuel supply during increased load and throttle input. For LML owners looking to protect their injection system while improving drivability, this pump offers a practical and focused solution.

Fitment: 2011, 2012, 2013, 2014, 2015, 2016 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax LML

Notes:

• Fits 2011-2016 6.6L Duramax LML only
• Designed for stock or lightly modified trucks
• Provides 8 PSI fixed fuel pressure
• Not a full filtration upgrade system
• Titanium Series recommended for heavy fueling upgrades
• Professional installation recommended
• Verify compatibility with existing fuel modifications
• Intended to support factory CP3 pump
• Does not replace injection pump
• Ensure overall fuel system health before install