works well but crude design, fit and finish
"First off this kit does exactly what its designed to do and provide duel fuel line delivery to your fuel rail. It keeps pressures up, more consistent, with no lag of high to low spikes in WOT to pedal let off to WOT. The instructions were clear to a point, and installation straight forward. However, not fully explained by either the description of the product or the install instructions is the capping off of your existing fuel pressure relief valve. I understood only by a previous review this would be eliminated entirely, and was ok with eliminating the pressure relief valve and putting my injectors at risk. further research through Cummings, off the record, determined my stock injectors can handle spikes in pressure up to 35,000psi and the pressure relief valve is designed to open at 25,000psi. What I didn't like, was the crude way of capping off my existing pressure relief valve. It wasn't clear in the instructions what this was supposed to look like as a finished installation. I called the Diesel Power Products techs, and to my dismay, they also had no knowledge of how this was to be done and referred me to Industrial Injection for clarification. The tech at Industrial said my old pressure relief valve was to be installed on my now disconnected end of the fuel return line that was just literally floating free from my fuel rail. He advised me to zip tie it to something. That's it. For the high price of this kit, no finished cap, bracket, or way to finish off the return line except cap the banjo with your old relief valve, and zip tie the return line to something to keep it from vibrating around. also for the price of this kit, some 45's and 90's for the new fuel line would have really helped out in reducing how much you have to bend the hard line from your injection pump to your rail. but again, it works well, just not a refined kit or design. Great idea, but literally seems like something someone crafted in their garage, and decided to sell before working out all the finish and fit issues. But as always Diesel Power Products was quick on the shipping."