tooter's manifold adventure...

[cali yaris]

Love this project. I think it would be easier to take the general idea and make them from scratch in production runs. The flange will be the same on each one and positioned correctly, for example, as opposed to making each one as an individual project. Would bring the cost down as well.

whoever gets the blueprint, will someone sell just the flange by itself or start buying up old corolla manifolds and doing all the welding themselves and sell it as a whole?

Maybe! And to go back to Tooter's point about wealth, that is when wealth will be created, not before. So far, a fee has been paid for a service to add "value" to a part. Wealth is created only when the part is sold with the added value included (aka profit), not before.