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after searching and not finding what i'm looking for.

A friend of mine is thinking of buying a 32 gtst and was asking if i'd part with the twin turbo setup off mine when i finish my single turbo.

Will rb26 manifolds fit an rb20. if not, how extensive are the modifications for them to fit.

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they will not bolt on.

the flange plates are different, you'll need an adapter made up. Then not to mention the oil lines and stuff.

And then you look at it being an RB20 with GTR turbos... it would be a performance downgrade, no question about that

i wouldn't exactly call it a downgrade, considering i happily made 197.7rwkw on a stinking hot and humid day on 13psi, but it is laggy none the less.

I'm using custom adaptor plates to get them to fit.

As for extent of modification, well, the receipts in my folder total around $10 000 for the conversion, including supplying of the manifolds and turbos, and making up piping etc etc. I'd have to dive through it and see if i can get an exact just on getting it up and running (i didn't do the conversion, i bought it like this)

well considering the costs, you could use a HKS 2530/2510 or similar and it'll be making good power a lot sooner because its correclty suited to the application... i know what i would choose given a choise :)

But im not gonna get into whats better and what isnt

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