basically do they fit like stock ones, and do the stock injector plugs work. the motor is a JDM B16A 2nd gen(grey connector).wondering about the 440cc and the 525cc. THANKS

 

mine were direct replacement

 

i got a 96 h22a, only thing i had to do to get them to fit my in stock rail was dremel out the orings a bit...not very much, i was actually surprised. i just used one of the small sandpaper bits and went around the inside of the ring like 3 times..fits perfectly, no leaks or anything..