CSF originally designed the BMW S63 Charge-Air-Coolers for the F9X M5/M6. Over five hundred of these Intercoolers kits have been sold with many of them on 1000+ hp builds. Due to their popularity and success, CSF has received many requests to have a set made to fit the X5M and X6M. CSF worked with Steve Dinan's Carbahn to develop the mounting hardware needed to use these coolers. The result - a true plug-and-play system requiring no modifications to install that will take your M SUV to a whole new level.