Ive fitted a zetec 1.8 (130ps) to my mk3 and i don`t know what would be better, standard inlet or to run it on a set of 40`s i have, it used to have a 1.9cvh with the 40`s, but this means i would have to buy managment. But if i use the standard inlet and loom, i would have to fit a rst tank and pump. Not on a massive budget so bhp per £ is what i`m looking for......