I have read about using a chipped p28 ecu in a jdm h22a prelude but i also read you lose your secondaries. Is there any ecu that is chippable that i can use and keep my secondaries and is compatible with the ostrich 2.0 or hondata? I read that hondata wont work on my stock p13 ecu. Only the p28 and others

 

You can have IAB capabilities added to any Civic/Integra ECU, including P28. P72s already have this hardware stock.

 

So a p72 would prolly be my best bet but I could use a p28 with something like hondata or ectune and control the vtec and iab with the program?

 

You have to add that option. I have a P28/S300 and couldn't control my iab's, not that I have them.

 

P28 needs hardware.
P72 is ready to go.