This product has been discontinued. Click here for an updated version. This kit is a great fit for 2011 - 2016 GM LML trucks with a 6.6L Duramax engine. Convert your fuel system from a less - reliable CP4 to a high - performance CP3 high - pressure pump. You'll get better performance and peace of mind. Fleece's kit comes with all the necessary hardware to replace the CP4 with a CP3, no tuning changes are needed, and it maintains all factory emissions controls. Features include a CP3 Pump, Billet CP3 Engine Block Adaptor, High - Pressure Fuel Rail Line, and more.

To use this conversion kit, first make sure your vehicle is a 2011 - 2016 GM LML with a 6.6L Duramax engine. Then, gather all the parts included in the kit. Start by carefully removing the existing CP4 pump. Next, install the CP3 pump using the provided hardware like the billet CP3 engine block adaptor and bolts. Connect all the fuel lines such as the high - pressure fuel rail line, low - pressure fuel feed line, and return fuel hose. Make sure all connections are tight. You don't need to make any tuning changes, and the kit will keep all factory emissions controls. As for maintenance, regularly check the fuel lines for any signs of leaks or damage. If you notice any issues, replace the parts right away. Also, keep the CP3 pump clean and follow the vehicle's regular maintenance schedule.