has anyone fitted a K&N air filter to their Td4 ? Was it any good or not worth doing?
yes .. for the past year ..
i've just now removed and replaced it with the regular type
~~~~~~~~~
the K&N offers little or no performance advantage for the td4
i.e. .. imo .. not worth it in that respect
as is .. i had to modify it slightly to make it fit properly ..
and also had a right hassle replacing the air cover after ..
( no idea if that was connected to the filter ..
( what i do know .. is that with the regular filter .. the cover was easy to re-fit
( maybe a coincidence .. dunno ..
i prefer the construction of the regular filter .. with it's added 'sleeve'
btw : that 'sleeve' is washable .. ..
and i noticed that whatever oil hit it .. didn't make it to the paper element ..
~~~~~~~~
so i've washed the K&N .. 'n stashed it in a plastic bag ..
for use in case of emergency ..
will stick with the regular filter from now on ..
~~~~~~~~
after-thought :
maybe an oiled element filter like the K&N might have an advantage should there be water ingress to the intake
e.g. hitting a deep puddle .. has been known to foul the regular paper type filter ..
( i've not tried spraying water on the K&N to find out what might occur )