Hi, and welcome to these forums.
I am not familiar w/this exact product, but w/only 7.5K why bother? A modern car running as lean as they do would not need such a treatment so early in it's useful life. You might actually be causing more harm that doing good.
If you need a line as large as the brake booster hose, you may have to cut it and insert a tee fitting then cap it off when the treatment is done. Or, if not, there are several smaller lines, including an unused one near the ETB in the intake (where I connected a vacuum gauge) that may be accessed.
Short of that, connect a fitting into the top of the airbox itself and use it.
These are just some of many possiblities, I'm sure. As I'd said, I'm not really sure if this product is in a pressurized can or it just needs to be pulled in by engine vacuum, but I am sure there would be a way to do it.
If you can, post some pictures of what it is you are trying to do and maybe I, or some other mechanical sort on this forum, could help you more.
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
Coming Soon: Drilled rotors; More LEDs!!! (Notice: This list is now shorter, like my shifter.) <^_^>