I am thinking of doing a tii swap into my 91 n/a and I was just wondering if I am able to use the s5 n/a afm on the tii or do I have to get one from a tii? Thanks

 

you need the air flow meter, ecu, and map sensor. You can start it with the n/a stuff, but you probably shouldn't drive to much as you won't be getting the right amount of fuel and the n/a sensors are not made to read boost.