I agree & much less maintenace, I did a 3500 klm trip through some of the worst bull dust in the country, pulled the filters when I got home & by the looks of them they could of done another trip, absolutly no dust had penertrated the filters & the intake was still spotless, try that with an aftermarket filter, honda designers new what they were doing when they made the air intake system, great filtration & low maintenaceI was at Powercommander a few weeks ago and their opinion was that OEM filters on bikes are now much better and you wouldn't see any improvement by fitting an aftermarket one.
If I were riding in bull dust or just off road for extended periods, maybe these. Probably a performance hit too.Does anyone make a removable pre-filter for the big stuff (wasps, etc,) that might fit in the inlet? Would be nice to have something you can just pull and wash to extend the life.
You might want to ask KTM how many dusted motors they had to rebuild here in AU under warranty when the 1190 first came out, (with their stock air filter used in the rest of the world). To the extent that EVERY KTM adventure bike is now fitted1190,1290,1050,790 etc are all fitted before delivery with a Unifilter kit to replace stock air filter (also includes new airbox seals,main and pre filters). You might also note that the YamahaT700 here in AU comes fitted with a Unifilter (not the stock paper filter fitted in the rest of the world) and they recommend adding the pre-filter for dusty conditions.This thread started around 15 months ago but, I'll throw in my 2 cents. Having been driving and maintaining everything I've ever owned for the last 50 years, (cars, trucks, motorcycles, motorhomes, boats, lawn and garden gas powered equipment, and many other things that roll), I've never ever had a reason to veer away from the factory air cleaners. In approximately 30 motorcycles, maybe the same in cars, a good dozen trucks etc. I've yet to have a motor go south because of the use of factory air cleaners.
I've ridded m/c's in dusty, dirty and muddy conditions (I hate mud) and the factory air cleaners have ALWAYS done their job.