Hi all, does anybody know if it is possible to fit a power boost valve to the Audi 80 Sport 16v 1991 B3 model. the reason i ask is i'm mildly tuning my car and have so far only fitted a green performance panel air filter and i'm in the process of purchaing a performance cat-back exhaust. So thats the air intake and exit sorted and the next logical step seamed to be fuel intake. i've searched the power boost valve website but it would suggest that because my model is mechanical injection it is not possible to fit a power boost valve. Any ideas anybody? and if it turns out i can't fit one what would be the next tuning step?