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John C Garage CP3 Conversion Kit For 2011-2016 Duramax LML *No Pump*

John C Garage CP3 Conversion Kit For 2011-2016 Duramax LML *No Pump*

Our very own John C Garage CP3 conversion kit for your 2011-2016 LML Duramax with no CP3 pump included!  This is just the hardware kit. Want the full kit with CP3 pump too? We sell that HERE.


This conversion kit will require calibration adjustments from your preferred tuner.


This kit consists of only the best components possible which took us years to perfect with hands on experience installing these kits!  You'll receive a our in-house low pressure fuel line to eliminate the factory fuel filter (for those running a lift pump), and our JCG return fitting kit (2nd picture). Doing this gives the cleanest possible install and eliminates pretty much all of the factory fuel lines. Less clutter, less chances of a leak!


We keep these kits in stock so same day shipping in most cases!


Included Hardware:


Low pressure fuel line for 2011 or 2012-2016 (You choose) 

AN return line kit with push-lok fitting

CP3 adapter plate

x3 Allen socket bolts to mount CP3 to adapter plate

x3 lock washers for Allen socket bolts

x2 orings for adapter plate

Plug and nut for passenger fuel rail

High pressure fuel line

1/2" barbed CP3 inlet fitting

9th injector plug for return port

JCG 9th injector downpipe plug

FPR extension harness

JCG 3D Printed Fuel temp sensor bracket


This is the most complete kit on the market and provides the best fit and finish!


Any questions, let us know!

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