I enquired about one for my 145 boxer but they seemed unsure if one could be fitted.
I've checked the forums & it seeme noone has tried it with an Alfa.
The device basically leans the air/feul mixture & created turbalence thru the intak to promote better combustion.
I was told it could'nt be fitted to the boxers but I think it'll go on the injection models.
There's loads of reviews on their website from some quite reputable places (including the DTI) but I get the feeling that it probably doesn't do much for perfromance but it'll give you a few more MPG's.