Upgrade the stock Injectors in your 2007.5-2012 Dodge 6.7L Cummins with the DDP Injector Nozzle Set. No other upgrades provide you with the power and torque that a set of Dynomite Diesel Injector Nozzles can. The 25% over is the biggest nozzle recommended for your stock CP3. Sold as a complete set with new copper washers & injector hold-down tool.