Hi, Just wondering if anyone has changed their 2014-2016 headers to the older 2014 50mm headers? There is a Lad I was talking to has changed his as he got the full system.. but would this make a difference to power Etc changing from the oem 60mm to 50mm. Guy I spoke to has done this on his track bike too. Apparently they have the same engine it's just the headers that are different so a straight swop is easy..