disappointed in the aftermarket

[cali yaris]

I still can't get an intake manifold actually made for this car,

Of course you can, you just won't pay for a one-off (and I don't blame you). I got one made. When I looked at production costs versus the number of Yaris owners that would really pony up the money (and not just say they would), I backed off.

EVERY parts project I've done for this car so far has undersold, some pretty badly. That's either me making bad stuff, or something going on with the integrity of the buyers. Take your pick.

The vast majority of Yaris owners are simply not going to spend a lot of money on this car. It's not a criticism of anyone, it's just the truth, based on my own business experience.