Supercharged 2ZR-GE in Elise

[KVas]

Lotus experts, I need some consultation.

Anyone knows who developed supercharged version of Toyota 2ZR-FE 4-pot, and who assembles those engines?
Is it Toyota, or Lotus, or some outside contractor?

I've googled, but found nothing.

And one more question regarding the internals: are those pistons & conrods stock Toyota or custom-made?

Edited by KVas on Monday 20th February 17:48