Description: This S&S Diesel CP3 conversion kit is a great choice for your 2011 - 2016 GMC/Chevrolet with the LML 6.6L Duramax engine. If you're looking to extend your engine's life by replacing the failure - prone CP4 pump or boost performance, this kit is for you. The CP4 high - pressure pumps have high failure rates and can damage the entire high - pressure system, which is very costly to repair. This kit allows you to switch to a reliable CP3 Injection Pump. It offers a 50 - state CARB legal conversion option that uses factory emissions control equipment without the need for tuning. Competition kits, however, require Emissions Off Tuning. Part Number: LML - CP3 - CARB. Features: Replace the unreliable CP4 with a CP3 pump. The 50 - state CARB legal conversion kit with pump uses factory emissions equipment and no tuning. Competition kits need Emissions Off Tuning. Installation: Click Here.

Using this CP3 conversion kit is simple. First, make sure your vehicle is a 2011 - 2016 GMC/Chevrolet with the LML 6.6L Duramax engine. If you choose the 50 - state CARB legal kit, you don't need to do any tuning, and it will work with your factory emissions control equipment. For competition kits, you'll need to do Emissions Off Tuning. When installing, just click the provided link for detailed instructions. As for maintenance, regularly check the pump and related components for any signs of wear or damage. If you notice any issues, it's best to have a professional take a look. Keep in mind that if you're using the competition kit, make sure your local laws allow for Emissions Off Tuning.