as the topic asks. which would you recomend for eg cold air intake.

 

k&n filter

 

foam. i remember watching this video where they were testing the different types of filters from different companies. the foam one's did better.

 

its for a cold air set-up. will the foam still be good if its wet?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by blue_hatch &raquo;</TD></TR><TR><TD CLASS="quote">its for a cold air set-up. will the foam still be good if its wet?</TD></TR></TABLE>

good question. but then that kinda goes the same way for the paper filter too huh?

 

Foam filters usually (not always) flow the best, but don't filter as well as a paper filter usually does.

K&N-type cotton gauze & wire mesh filters are usually the best compromise. Like a foam filter, they can be cleaned and re-used.

Just keep your fender liner and you won't have to worry about it getting soaked . . .

Here are a couple of filter tests:
http://www.mkiv.com/techarticles/filters_test/2/
http://www.ftooc.org/contents/...r.htm

 

BTW, take those filter tests with a grain of salt and ignore the horsepower for the most part. In the first test, the Apexi filter did flow better than the K&N, but keep in mind that the Apexi is expensive and not clean-able, so you'd have to fork out some cash to replace it every so often (don't buy Apexi's claim that it is a "lifetime" filter). It is also a dry-type filter, which is more of a concern around water than an oiled filter is.

 

thanks for the info
does k&n come with a 2.5 inch inlet? isint it always 3 inch.

 

k&n actually makes allot of difference sizes. i've seen a k&n filter for a moped.