The stock CP4 is only capable of supporting up to ~500rwhp and was introduced as a cost reduction to the LML platform since a smaller amount of fuel is required when running the more efficient piezoelectric injectors.
Fleece Performance CP3 CONVERSION KIT - WITH CP3K PUMP
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Features
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Instructions
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Vehicle Fitment
Since its introduction, the CP4 has proven to be less reliable and less capable than the CP3 used in previous Duramax platforms.
A CP3K is capable of supporting 600+ rwhp in conjunction with the piezoelectric injectors. The reliable and proven PowerFlo 750 is capable of supporting nearly 850+ rwhp.
Kit Contents:
High Pressure Fuel Rail Line
Fuel Rail Plug and Nut
CP3 Block Adapter with O-ring
(3) CP3 Block Adapter Bolts (Flange Head, M8x1.25x35mm)
CP3 Pump Fittings – 3/8”
CP3 Pump Fittings – 1/2"
(2) Sealing Washers
Low Pressure Fuel Feed Line –
3/8”x8” Flexible Fuel Line with Hose Clamps (CP3 Return)
1/2”x30” Flexible Fuel Line with Hose Clamps (Filter to CP3)
3/4” P-Clamp
Fuel Return Line Block Off with O-ring
NO CORE CHARGE ON CP3 PUMP!
Prop 65WARNING: Cancer & Reproductive Harm - P65Warnings.ca.gov
Year | Make | Engine |
2011-2016 |
Duramax |
6.6L |