bmw m52 b28 which hardware to buy and from where?

[babyjason]

Hello,
I have my project car since 10 years i always wanted to add turbo to it, but i do not know what vems to buy exactly, complete everything needed. My service guy wants to charge me like 3000 eur for the vems, which seems crazy.

Could you tell me what and where to buy vems for my engine m52b28

Thank You.

PS: I am from romania

[MWfire]

I did lot m25b28 car.
Also fastest FWD in romania(opel)