crazy........... i was thinking of getting this but my god. considering you have to clean the k&N and not just discard it, doing it on my own is quite difficult proposition. makes you wonder if it IS worth it really or just let the mechanics change it during regular service.
'14 Black F11 530xd - NOW
'07 Silver E86 Z4 Coupe 3.0si - SOLD '16
'07 Blue E90 325i - SOLD '12
'06 Silver E90 320d - SOLD '10
'98 Blue E36 320i - SOLD '06