raw kernel r4 is cwm while r5 is TWRP. To root and get custom recovery for your stock rom,you must flash philz kernel. Once you have philz kernel, reboot recovery and from there flash r4 or r5 kernel and again reboot recovery and then do the wipes and flash any kitkat rom with gapps. Kernel with SELinux support are raw kernel, r4 and r5, Asylum kernel http://asylumrom.com/Asylum/Asylum-Roms/KitKat-4.4/N7000/kerner/.
Oooooo now I understand the process. Your explanation is details. Thanks. I'm very newbie, too hard understand "strange language" on this forum wkwkwk. Thank you. Btw between CWM & TWRP which are better?