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.
'98 Avus Blue 320i - SOLD '06
'06 TiAg 320d - SOLD '10
'07 Montego Blue 325i - SOLD '12
'07 Z4 Coupe 3.0si - SOLD '16