Audi New Turbo Series PicturesIf it is a good quality one, you will see an increase of power and mpg's, ans should be compatible with the turbo. Normally practically nothing - an '84 with over 100k miles is a couple of hundred bucks at best, if that. The Olympic thing is the only kicker, as you've noticed. Since you know exactly which number it was, it probably would be of value mainly if you can