I bought one of these for my 2017 Cruze and was unable to locate the correct tool to remove the bottom most bolt from the stock diverter valve. The area is very tight to work in with both the accessory drive and AC lines making it even harder. A standard key can make its way, but you have no leverage to turn it. My sockets hit with any combination of extensions and my T handle tools are too long and end up in the AC lines to the left. It may bolt to the car, but getting it there does not appear to be any 20 minute job. I might revisit this eventually, but after 3 hours, I've kinda lost interest.