i havent found any problem yet. i drove the Polo to work today and noticed that power of the Polo feels very much the same as the Golf does down low but where the Polo seems to keep pulling through the rev range with boost the Golf just doesnt do anything. I still need to check the DV and make sure it isnt leaking but to do that i need to get some new clamps for the vacuum hose as i am most likely to destroy the ones on there when i pull them off...