Has anyone tried one of the AF-XIED lambda shifting devices on the X? I know it's a BMSC and not BMSK but I'm curious if it helps richen the AFR like it does for the 1150s. Here's a link to the development thread. It's a good read- explains things very well. http://advrider.com/index.php?threa...o2-sensor-project-and-af-xied-for-bmw.749080/ Any help would be much appreciated. Thanks!