ko3 to ko4???

[spnorris]

is it possible toswap the origanal turbo on my b5 1.8t quattro for a ko4 turbo? if is, how difficult?

 

[Markey]

yes not that much i just done it see my "bit of a project going2 on thred in this sub forum

 

[macca]

make sure you geta k04-015, someone please confirm, as the others won't fit!

 

[jcb]

think you need a different manifold...or maybe I am thinking about the transverse engines.

but yes, you need a XX15 version for longitudinal engines.
Try German eBay

 

[PaulJC84]

The standard manifold fits the K04-15. Just need to get the new gaskets and the turbo.