Description
Fleece Performance 01-13 GM Duramax 6.6L Duramax CP3K (LBZ/LMM Based)
The Fleece Performance CP3K is a high-performance upgrade specifically engineered for your 2001-2013 GM Duramax 6.6L engine. This modified CP3 pump is designed to tackle the factory fuel flow restrictions that can hinder your engine’s performance at higher RPMs.
Key Features:
- Enhanced Fuel Flow: Eliminates the factory fuel flow restriction that occurs at 3,000 RPM, ensuring optimal performance.
- Increased Power: Prevents loss of fuel flow and rail pressure after 3,000 RPM, helping you maintain horsepower when it matters most.
- Cost-Effective Upgrade: A budget-friendly modification that offers significant improvements in engine efficiency.
- Thorough Testing: Each CP3K is rigorously tested on in-house engine simulators and pump test stands, guaranteeing reliability and readiness to perform.
Installation Notes:
For optimal results, the fuel pressure regulator will need to be scaled appropriately when installing the CP3K on 2001-2005 models (LB7 or LLY).
Conclusion:
Upgrade your Duramax’s performance with the Fleece Performance CP3K and experience a significant boost in fuel efficiency and power. Don’t settle for factory restrictions; unleash the full potential of your engine!






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