If you are using the OnePlus 2 one big reason you may have purchased the device was to take advantage of custom roms like CyanogenMod. The bootloader of the OnePlus 2 is easy to unlock. TWRP is readily available for the device and you can easily install custom roms without having to worry about voiding your warranty. CyanogenMod is now available for the OnePlus 2. It brings some performance enhancements as well as some customization options. Head to the link below for downloads and the full install guide.
via theunlockr