I've seen that there is a 90C option available for the N62. I searched here but couldn't find any reference to anyone running it. Saw a lot of people using them in 7's and 5's though. BMW designed these to run hot for added fuel efficiency but it's just a bit too hot for me in 100+ degree Texas summers unless I want to be changing hoses and expansion tanks every couple of years.
https://www.ecstuning.com/b-hamburg-...37586885-90c~/
Anyway, anyone here running one of these? Anyone see any down sides? I am going to be PM'ing the water pump, thermostat, and pulleys in the very near future and was starting to order parts so I figured I'd ask the forum and query the collective wisdom. What say you?