if this is akin to the SS based engine rule in SM (and i think it is) then i'm all for opening it up.

in SM, you spend 7k on a stock motor because B&B isn't explicitly allowed in the rules. allow it and you suddenly have $3500 pro motors.

i'm GUESSING that by allowing the stand-alone units using the factory harness and all that will actually lower the cost to achieve the same results people are getting now.

if my gross oversimplification of the situation is inaccurate, please correct me.

playing devils advocate now....

if we make the ECU rule cheaper and easier to achieve, it's likely more people will have stand-alone units. this now becomes part of the "normal build process" and increases cost of entry.