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)
Orders totaling $99.99 or more qualify for free shipping, unless otherwise stated on the product page.
Orders below $99.99 ship for a flat rate of $20.
Shipping rates apply to standard shipping only and may vary for oversized, heavy, or special order items when applicable.
Click here to learn more.
MAK OUT YOUR PERFORMANCE & STYLING
Get Support
Whether you need install guidance, order support, or help diagnosing an unexpected sound, our team is ready. We work on these cars ourselves, which means real answers and useful support every time.
