Great quality and good price. I had the spider off so install was really simple. I’d imagine it would be just as easy without removing it though. My truck was noticeably quieter at idle and this did everything advertised.

Install was pretty easy, took longer to take out my tools than to install this product. I'm not sure if this made a major improvement but I will say I noticed a little more consistent get up and go while driving around, and some better idle when it's cold outside. All in all a good inexpensive product to put onto the truck.

Was having fueling issues, installed Bosch pump, FRX and HPX quiter injectors and more power

Super nice quality, super easy install took 15-20 mins to complete. Injectors sound happier! Thanks RiffRaff Diesel!

Good fit and finish, good price, haven't got a chance to really run the engine much yet though

Super easy to install, reduced the injector noise noticeably. I sleep better knowing I'm doing all I can to extend the life of my injectors. Fast shipping too.

Fit perfect, shipped fast. Quieted down injectors slightly seems like it cranks slightly longer on startup but hard to really tell. I’m happy with purchase.

I installed the SS HPX crossover tube, the High Flow Fuel CVD Fitting Set, and the RiffRraff Diesel High Flow Banjo Bolt set on my 1999.5 - 7.3L. The result was amazing! The 7.3 starts faster and smoother, even on cool mornings. The engine noise is much quieter from starting, idling and at highway speeds. Can't wait to spend more money and buy more performance parts from RiffRaff Diesel.

Installed the HPx line on a 2000 F-250 Super Duty and I find the engine sounds more balanced and a bit quieter.