Hi, I'm looking to get a little more performance out of my Fox, but not heavily impact my gas-mileage. Can anyone suggest anything? What would be a good head swap. I've got a line on a head from a '00 Audi A4, but I do not know if it will fit. Also, can anyone explain to me what ATW means in reference to my engine? Thanks alot.

 

Welcome! I think AYW is all wheel drive, but I'm not sure. Maybe someone else knows.