K & N air filters
Posted: Fri Jul 31, 2020 9:52 am
Getting ready for MSVA, I took car to a friends farm to give it a good run. All was well but after a good few runs I noticed that the o/s exhaust note sounded more “popping” than the n/s. Previously they always sounded the same. This morning I took the bonnet off and can see that the o/s K & N air filter is now a white/beige colour and the n/s filter is still the original purple. Looking on Google suggests they change colour if they get wet but that has not happened. Also, I am fairly sure that colour (and exhaust note) have only changed as a result of the longer running yesterday. The car still starts ok and sounds fine.
Has anyone got any thoughts on what could cause changes?
Cheers, Tony
Has anyone got any thoughts on what could cause changes?
Cheers, Tony