My 03' track car had an engine transplant to a rev-up. I am not super familiar with the details of what this required when it comes to the ECM. I do know that all of the CELs are illuminated, which brings me to my question. That-said, the car also has no ABS. It is completely removed. I don't know if this was for a competitive advantage (for a driver with a super-talented foot), or because it's a PiTA to get it to work with the rev-up engine. I want the car to have ABS, and am not afraid to grab the ABS components from elsewhere to install it. At this point, I simply do not know if I'll run into any issues with the install. Thoughts?

Thanks!