Im a soon to be G60 owner and I'm kinda interested in this too. 65mm pulley and chip seems to be the way forward. I come from a Peugeot background (don't all laugh at once), 205 GTI's in particular. When I had the Mi16 singing she would be all over CTR's day in day out. Should see their face when they cant lose a 17 year old Pug. Hope the G60 can live up to my expectations.