My knowledge post this time is about the optional Sumitomo “MK63” / FIA / Nismo brakes. I chose this topic, because people often contact me to ask about these, and i thought it might be helpful to some of you. This post is focussing on the Nissan / Datsun S30 chassis Sumitomo MK63 brakes, but there is also a lot of useful information for other MK63 users / owners. I put this post together over a course of three years, spent countless hours on this and tried my very best to get all information from trustworthy and official sources, but as usual i cannot guarantee that all information is 100%…