Was debating between Dinan springs or splurging on KW coils when i came across this... has anyone every heard of M Performance Suspension Upgrades??
It doesn't seem like BMW or even the vendors here advertise it. Curious if anyone has looked into it or not
https://www.parts.bmwgroup.com/infod...Suspension.pdf
https://www.bmw.ca/en/topics/offers-...spension2.html