Oil in the k&n is usual its the **** that comes from the crankcase breather pipe and if you fit a breather filter on it you can never use the heaters as you get choked with oil fumes
For mechanical parts your best off trying the oldest motorfactors in town as there usually the cheapest and like rallycinq they know their stuff
Oil in the k&n is usual its the **** that comes from the crankcase breather pipe and if you fit a breather filter on it you can never use the heaters as you get choked with oil fumes
Depends how you arrange the breather filter.
If you stick a filter on the original pipe which used to connect to the side of the airbox, while leaving the vacuum end attached to the throttle body, it don't stink.