John C CP3 Conversion For 2011-2016 Duramax LML With S&S® CP3 Pump!

This conversion kit will require calibration adjustments from your preferred tuner to accommodate a CP3 on your Duramax lml.

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 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! If you need to keep your factory fuel filter in place, just let us know during checkout in the notes section and we can provide the needed hardware to continue to use that.

Please reference this guide below when selecting CP3 size.

SuperSport is capable of supporting 650HP

10MM is capable of supporting 750HP

12MM is capable of supporting 1000HP+

14MM is capable of supporting 1200HP+

Included Hardware:

Brand new S&S (LBZ Based) CP3 pump of your choice

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 from CP3 to passenger fuel rail

1/2" barbed CP3 inlet feed fitting

9th injector plug for return port

JCG 9th injector down pipe plug

FPR extension harness

JCG 3D Printed Fuel temp sensor bracket and stainless mounting bolt

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

Any questions, let us know!