1.8T FR Turbo upgrade?

[raullcrs]

Hello gents,

I have read a lot of the same posts but I can't seem to come to a conclusion..

I want to upgrade the turbo on my ibiza, not sure if to get a hybrid k03s or a plug&play k04.
The problem is that i have a milltek downpipe (straight pipe full system) and dont know if that will fit the k04 as i've bought the downpipe specifically for the turbo that i have..

Any suggestions please?

Thanks!