I found this article and though it was pretty interesting. Just though I’d post it here and see what y’all think of it. It’s about how to mod EPS (Electric power steering) so that there’s less assist. I don’t have an EPS car, but if I came across an F30(or whatever) BMW I’d probably try to do this with my mediocre electrical skills.

http://www.autospeed.com/cms/article.html?&title=Modifying-Electric-Power-Steering&A=111532

TL;DR- You wire a variable resistor in series with each of the sensors that goes into the EPS, thus tricking it into thinking there’s less force at both the wheel and steering wheel, so that it provides less assist.