Chevy Duramax 17-23 L5P 100% Over Injector Set Dynomite Diesel

The Dynomite Diesel DDPL5P-300 is a remanufactured 100% over injector set for the 2017-2023 Chevy Silverado and GMC Sierra 2500 HD and 3500 HD trucks running the 6.6L L5P Duramax. It replaces the factory injection with a larger, higher-flowing set.

Each injector is remanufactured, sized 100% over stock, and built with a modified body and an 8-hole SAC nozzle sprayed at 158 degrees. The set ships as a balanced and matched group of 8 for consistent fueling, and a usable core is required since these are reman units.

A 100% over L5P set is aimed at owners who have added a turbo or tuning and need the fuel to match, whether that is a heavy tow rig, a built daily driver, or a competition truck. It provides the volume to support real power gains beyond a stock injector.

Running this set safely calls for custom tuning and a supporting fuel system that can keep pressure and volume up under load, and you will need to return your cores. Dynomite Diesel backs the set with a 3 year unlimited mile warranty. Verify your sizing with your tuner first, as injectors are not returnable once installed.

For L5P owners wanting a proven 100% over step at reman value, this matched set delivers the fueling upgrade without guesswork.