i'm not sure if its a maxeffort or not and i'm not even sure if its for stock injectors,it was with the car when i bought it,it also cam with a maxeffort manual,again not real sure if it is maxeffort.i know nothing about it except for its a 16 position.the chip has a tubo6 logo on it and the writing says
stock injector
16 pos ver1
mh-veri.bin
and on the thumbwheel it says c&k