If your going for all black look and wanting fuel on demand buy this opens fuel lines up and flow like it should have from factory but wonderful job on the fittings great day in the fuel line custom

I am a repeat customer of RiffRaff Diesel and for good reason. They sell Quality Parts at a great price to fix the very few shortcomings on the 7.3L diesel. My truck now has 224,000 miles on it and still running great.

Great product, good service. I needed these lines due to a brake down 500 miles from home. Installed the driver side in 2 hours in RV Park. I am now just getting ready to install the passenger side. Riff Raff Diesel came to the rescue with over night delivery on time next day air.

Great product and company

quality product

Had a lot of free time lately and decided to find and fix the leak ive had on my 2001 7.3. Decided to replace the fuel lines and entire fuel bowl as well and found these with a lot of positive reviews. Im not mechanic by no means, more of a YouTube mechanic, but after watcher several videos on YouTube I decided to tackle this project. Along with the instructions and my videos removing was not a hassle. The only issue I had was the passenger line on the back of the head. It was tricky but I was cleaning up the turbo spider and adding more riffraff mods so I removed it and the cold side intercooler pipe so after adjusting myself I was able to reach the port to remove it with a 9/16. Installation to the passenger head was easy-ish as well with the turbo spider removed. The driver side line was easy well with the ICP removed (another part i decided to replace) and the use of a crow foot or flat wrench. Since I was replacing the fuel bowl with a new one, running the lines and screwing them in were easier for me then having the fuel bowl sit in truck. While the fuel bowl was out I could adjust the threaded ports easier before screwing on the lines themselves. After adjustment was made I started to hand tighten the actual lines to these ports all while the bowl was still free. Once I liked the way the lines looked and didnt have any pinches or awkward direction of lines and how fuel was going to run, I tightened the fuel bowl in the truck then the lines. No leaks luckily and the engine valley looks cleaner. Definitely helps to see if anything leaks when you have a clear view of your valley.

Ease of installation an fits absolutely flawless just enough in length an flexible so can be easily routed, fast shipping also

I’ve been working on upgrading the stock fuel system in preparation for larger injectors, these lines fit the bill. Gets rid of the restrictive check valve and leak prone stock connections all in one shot. It is nice that they also include high quality thread sealant with the lines. As a word of caution to those not familiar, only apply thread sealant to the pipe thread ends of the fittings.

Kit came with everything needed to do away with the factory lines. This company is amazing to deal with. They have done their research and made a great product with amazing instructions.