They say “K&N fully expects to become the default standard and supplier for a majority of OEM applications in the not-so-distant future.” more stuff in the landfills) paper filters. One of the interesting features of K&N air filters is that they have a 1,000,000 mile guarantee! Also, K&N claims that original equipment manufacturers are moving away from disposable (i.e. The company is most famous for their air filters, but they also manufacture high performance oil filters. K&N manufactures air filters for what seems like just about every type of internal combustion motor there is, from lawn mowers and small industrial engines to big honking truck diesel engines along with other intake components for various vehicles. While reading through some of their customer testimonials, I noticed the contributions came from customers located all over the globe.
The company was started 35 years ago as a family owned and operated business, and apparently remains so today despite being “globalized” with offices in the UK and the Netherlands. But accessing the air filter (along with many other tasks) on the GS is easy enough, so I was willing to give the K&N air filter a try on that bike.Īccording to their website, K&N Engineering, which is located in Riverside, California, is the “inventor and leading innovator of reusable cotton gauze filter technology”. I have to admit that I was also concerned about the cost, with some K&N replacement filters priced nearly three times that of the stock paper filter element. I had read where some K&N owners were cleaning their filters every 6,000 miles, but I have since learned “When used in normal paved road, street or highway conditions, our replacement air filters that fit in the factory air box should require cleaning every 50,000 miles”, according to K&N. The air filter on that bike is very difficult to access, so I wasn’t interested in using a filter that would have to be removed and cleaned more frequently than my present 30,000 mile interval.ģ0,000 miles may seem like a lot, but I have found the OEM filter will easily go that far in my usual riding environment. I was specifically concerned about the cleaning interval for the K&N filter, due to the difficulty in changing the air filter on my other bike, a BMW K12100LT. I was aware of the K&N brand of air filters, which seem to be a favorite performance upgrade, especially with motorcyclists, but I had never installed one in any of my motorcycles or vehicles so I was a bit ignorant about their care. This gave me some time to consider alternative air filters. The fuel filter I would also address at a later date. Upon inspection, the air filter was found to be clean and not contaminated, so I opted to gently tap out the remaining dirt and reuse it for a few thousand miles more. It was also necessary to replace seals on the transmission output shaft and right fork slider. This consisted, among other tasks, of changing all of the oils and filters (engine, transmission, final drive), flushing the clutch and brake fluids, adjusting the valve clearances, sparkplug check and a throttle body synchronization. With that in mind, my first priority after riding it home was to perform a thorough inspection and service. When I purchased my 2002 BMW R1150GS last spring it was with the knowledge that it had seen very little use (4,120 miles total on the odometer) due to a medical condition the previous owner had developed.
The K&N air filter offers a possible increase in power and longer air filter changing intervals.īut the K&N air filter must be cleaned and oiled using a special procedure.
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