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Fitment and Product Information: Fleece FPE-DMAX-CP3K CP3K Fuel Pump For 2001-2016 GM 2500-3500 Duramax Product Details:Brand Name: Fleece PerformanceManufacturer Part Number: FPE-DMAX-CP3KUPC Code: 635909310488 Short 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 y...

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