Hey guys, I have a 1999 Golf gti 125bhp engine code is (AGN). I am currently bored of the power and was wanting to change it to a 150bhp (AGU). i'm guessing because there both 1.8's it should be a straightforward swap with engine mounts correct? also what other parts will I need apart from:engine,gearbox,ecu and been told wiring looms?is there anything else I would need? thanx.