hay all i o new to this sight was told about it by a couple of members off vwwold.co.uk because im looking to transplant a 2 litre 16 valve out of a mk3 golf into my mk2 jetta, iv already found some usefull info on the sight but any more info like any big problems i may run into is much apriciated, also im planning on using the existing loom and cpu and splicing it into the existing car loom, is tht alright to do,