What a great writeup! I should have my cable this weekend. I'm looking to tweak some settings on my 2013 E93 M3. I know that this is the e90 forum and I'm wondering if these instructions apply to all E9x models?
Thanks in advance for your help!
2009 AM V8 Vantage Conv - Berwick Bronze, Quicksilver Exhaust
2013 M3 Conv - (RIP) thanks to uninsured a-hole
2004 Porsche 911 C4S Conv