These are 100% NEW Fleece Performance 5.9L Cummins common rail injectors that are engineered to get the most out of your Cummins diesel. From the injector body to the nozzle, this injector was designed for maximum performance. The nozzle spray pattern and angle have been optimized to outperform a stock honed nozzle with the same flow rate, and the injector body material has been upgraded to improve reliability over the OE injector. These are the highest quality and the best performing injectors on the market

New Engineered Nozzle Options

The engineered nozzles are brand new units manufactured with the highest of quality & control standards to their specified size. These are not simply stock nozzles that have been media honed! Specifically designed with a modified spray pattern and manufactured to size, these nozzles are engineered for better fuel atomization which leads to improved in-cylinder flame propagation. What does that mean? That means you will not have to rely on as much injector duration and timing to achieve your desired horsepower goal, which leads to better engine health, longevity, fuel mileage gains, and enhanced driving characteristics.

Custom Flowed & Balanced Injector Services

Handled by the best in the business when it comes down to Common Rail Injector Performance, Fleece Performance’s injectors are built with exacting quality & control.  The injectors are processed in a manner that will not only improve the engines performance, but enhance the tuners ability to calibrate and control them in every application.

1 year unlimited mile warranty.