John Harper,
I was duped by K&N's non-empirical claims, using them in trucks, Jeeps, and a dune buggy. Then came a big surprise when I started researching the
empirical evidence.
I've thrown away my K&N filters. replacing them with AC/Delco paper filters in my offroad trucks. A little pricier than the cheap paper filters.
It pays to shop, in advance of needing the part, on eBay/internet.
I do stretch the usable life of the filters by blowing the dust out with compressed air (not close enough to harm the paper element).
Check out the nifty color charts on this link:
http://nicoclub.com/archives/kn-vs-oem-filter.html
For motos/quads, I'm using oiled foam type filters. Would NEVER again use a K&N on anything that sees dirt or sand. |