Because it was molded with a Chinese name or Made in China as this is the first thing I check before I order up parts. I couldn't find a Japanese supplier name anywhere on the coilpack which with the other sensors you can clearly see Hitachi or whatever, injectors have Bosch molded next to the Nissan pad print, etc. Not to say the OEM didn't change suppliers later but the 2012 original coilpacks are 100% chinese made and/or branded if I recall. This prompted me to immediately order up the Hitachi coilpacks from Rock Auto which was a no-brainer based on cost and reputation. Again, possibly the newer Nissan OEM coilpacks are made in Japan now but not my originals. Whether there is a difference in quality or specs I can't say but if I can run Japanese parts I will.