Originally Posted by dirtybird_434
+1 for this question also.
Would like to know the milage everyone gets for this tune as this is my daily driver car.
I have a 2006 e90 330xi sport and was thinking about the AA tune and know next-to-nothing about the mechanical components of cars. If there are not any other mods on the car is the AA worth it? Is the addition of a K&N airfilter recommended/ necessary?