I hate search engines.

I'm curious to know if there is, or ever was a Lightweight Flywheel made for the X3 platform.
If not, then does anybody know of any noteworthy companies/machine shops that could fabricate/replicate one for me without me breaking the bank.

If you are thinking about giving me the "its not worth it because the power gain to money spent ratio is atrocious" lecture, i am not interested.