MonkeyMD
Autocross Champion
Here's a link someone shared with me that has some good info. Not sure how handy you are.
https://forums.vwvortex.com/showthr...h-flow-CAT&p=113508695#/topics/9327797?page=1
https://forums.vwvortex.com/showthr...h-flow-CAT&p=113508695#/topics/9327797?page=1