I have an ER34 and plan to restore her to the factory standard and sell her much later in life as a "stock standard ER34". She is an Auto RB20DE NEO.
I have few people agreeing that putting a Manual RB25DE NEO in her won't take her away from being factory standard as some came like that from the factory.
The thing is, to me, it's just modifying her from her VIN plate. I believe to keep "factory stock standard" I have to keep her auto RB20DE NEO and just replace original parts when needed.
What are the rules around this plan of restoration?
Should I put a 25 in her which changes the VIN and changes the kms?
Please help, so lost here, thank you.