so i have a 90 crx with an LS swap. using a PR4 ecu. i want to add a vtec head but i dont want to go through the hassle of switching tuning methods ( since im turbo and i do my own tuning) to go to OBD1. so what ecu should i be sourcing if i plan on having an OBD0 ls/vtec.

 

jdm b16 pw0/pr3

 

kool, and either of those can be chipped? anyone know?

 

yes they can be chipped