hi i wanted to know if the hondata s200 is just a plug up and go i have 93 eg si or do i have to do a custom harness. I was also wondering i am going all motor on a sohc and i wanted to know which stand alone would be better the s200 or the s200 with boost should i just spend the extra money or its not needed since i am not going boost

 

why would you get the boost option if you're not going to boost? think about that for a second....

hondata goes inside the ecu. you dont need anything else.