ok im swapping a jdm b16a into my 1990 integra ls. heres the problem i got it out of a crx. and this motor was fully pro built by a shop and i know the b16a need 2 o2 sensors in the header. but this motor has none? i have the header still on the motor. no o2 holes at all and he said there was none in the exaust at all not even one after the header. soo what was thinking is that can it be tuned not to have o2s?