Ok i put a Z6 in my 89 HF its Si wired and im running the old dizzy and computer I can get the Z6 computer i think the P3 or 28 whatever one was stock what will i ned to change to wire it up the whole harness or can i just get the plug at the end of the computer and splice it into my existing harness? I can get the whole harness and Computer for only $75 any help on doing this would be appreciated. I want me Vtec abd that damn studder under 3k to go away hehe

 

buy a pr3 or pwo and run the wire for knock sensor o2's and vtec. and your set. thats what i did to my car and many other ef's.