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. As with all my knowledge articles, I tried my very best to get all information from trustworthy and official sources. However, I cannot guarantee that all information is 100% correct. If you have any correction, input or additional information, I appreciate…