
Pic 1: RB25DETT from Japan
Bro Alvin asked about RB25DETT a while back and today bro Azmir did the same. I dig into my resources and here is it .... a RB25DETT. Yeap, A twin turbo-ed RB25. I came across the above picture in Yahoo Auctions a long time back. This custom one-off manifold to mount the twins were for sale. Nope, I didn't bid for it. The novelty is great but doubt it is worth the effort and the cost.
Here is another example done in the UK.

Pic 2: RB25DETT from the UK



