Just buy it.
You wont be disappointed. I got the hot and cold side charge tubes for my 6.7 for a couple reasons. 1. My cold side blew apart. 2. My hot side was leaking at the turbo and I seen wear on the inside of the tube where it meets up with the turbo. . 3. The hot side was on back order for the entire US. The kit came with everything needed to install as well as pictures on the instructions. These tubes are FAR SUPERIOR to the factory crap at the dealer. The hot side tube fought me a little bit when trying to install onto the turbo but if you put some silicone spray on the seal and push and twist like hell it Will go on. Word of advice if you are mechanically inclined, remove the upper intake and clean out the carbon build up from the upper and lower intake assemblies. I do have to say I am kind of disappointed. NOT with the product itself or with the color or construction. I did NOT receive a sticker in the box. Really bummed me out. Wink wink nudge nudge! Lol.