I'm sure everybody's heard of this before and I thought about picking one up for the 2014 N1K. I heard a lot of rumors that the ABS system interferes with compatibility but I called healtech and they said it works. They shipped it and lo and behold, it wouldn't work. Spent the last few weeks back and forth with their engineers in the UK doing tests and they basically determined the standard unit isn't compatible. I'm mildly annoyed to say the least but they actually offered to make a custom unit that would specifically work for my model if I can provide some voltages for them. I'm not sure if I should bother at this point because I've already wasted a ton of time playing wire surgeon on my dash for a little speedo correction. I feel like the real upside will be resale value (not that I'm doing that anytime soon) and other 2014 N1K owners will be able to order one without this hassle I'm having. I'm probably going to go through with it when I get the time to measure voltages again (4th time doing this T__T). Thought I would share this for anybody interested in picking one up in the future.