I just put in a eibach 25mm hollow on my 2018 gti se. Awesome upgrade over stock...super happy with it.
Eibach measured bar rate: N/A
Rate is not on the website
Rate is not why you buy an Eibach sway bar, it's the red paint and the rad sticker that comes with it, worth at least 5HP!
If you actually care about the rate you should probably buy a Hotchkis