ko3s is the best turbo upgrade for the AGU engine by far! good gains with minimum expense! the ko3s can be sourced from a number of vag vehicles! audi tt, seat leon, mk4 golf etc!
what sort of price i'm looking for it??
it depends really anything from £50-£300! my friend picked his ko3s up from a 04 audi tt with 24000 for £90! so its just a matter of luck and patience!
