Thanks for the reply's.
The engine is going to be the 320i engine with rear wheel drive.
I am not totaly sure what i am going to do with the airfilter.
I could go for an air duct in the grill or i could make a "normal" airfiler, i am trying different things, i am also looking into the acura kit 86_SR5 pointed out to me
. I will keep you posted on this one.
When surfing the net i also stumbled on a great reference site for the engine, this will also come in handy
http://www.davidmcintyre.org/rebuild-no.html
Later
Erik