The Sinister Diesel 6.0 Powerstroke Blue Spring Kit is a high-performance upgrade kit designed to improve the fuel pressure regulation system in your Ford Powerstroke. This kit includes a precision-engineered regulator spring and billet aluminum housing that replaces the stock regulator on the fuel pressure regulator assembly, which helps increase fuel pressure, reduce injector stiction, and improve overall engine performance.

The blue spring included in the kit is designed to deliver consistent fuel pressure to the injectors, which improves fuel economy, power output, and engine responsiveness. The billet aluminum housing is built to withstand high-pressure fuel flow and is designed to resist corrosion and wear, ensuring long-lasting performance and durability. 

The kit is easy to install and comes with all the necessary hardware and instruction to complete the upgrade. With the Sinister Diesel Blue Spring Kit, you can expect improved engine performance, increased fuel efficiency, and a smoother driving experience. Whether you use your diesel for daily driving, towing, or off-roading, this kit is a must-have upgrade for any enthusiast looking to get the most out of their 6.0