The Fleece Performance Duramax CP3K is built to OEM-or-better standards for diesel truck owners who want a no-compromise upgrade. Engineered, manufactured, and supported by Fleece - the diesel performance specialists.

Features

• Modified LBZ-based CP3 that removes the factory 3,000 RPM flow restriction
• Maintains rail pressure across the full RPM range for consistent power
• Cost-effective upgrade for stock and lightly modified Duramax builds
• Tested in-house on Fleece's engine simulator and pump test stand
• Fits 2001-2016 Duramax (LB7/LLY requires rescaling the fuel pressure regulator)

Specifications

• Fuel Type: Diesel
• Engine: Duramax
• Country of Origin: US

Manufacturer Description

The Fleece Performance CP3K is a modified Duramax LBZ CP3 designed to eliminate the factory fuel flow restriction that begins at 3,000 RPM. If you have a stock CP3 pump you are losing fuel flow and rail pressure after 3000 RPM, which correlates to lost horsepower when you need it most.

This cost effective upgrade will allow you to maintain desired fuel rail pressure through your entire RPM range.

Note: The fuel pressure regulator will need to be scaled appropriately when installed in a 2001-2005 (LB7 or LLY)