cheers, good to know.I like and use K&N filters in my bikes.
Don't really notice a real performance improvement, I just like them because they are easier maintenance - mainly because the spray-on K&N oil is not all gummy and does not turn your airbox into a sticky mess.
It won't make a big enough difference to require re-jetting.
I agree. When I bought my old DRZ it came with a KN.... if you hold the filter up you can see through it. NOT recommended if you will see any dirt roads or dusty conditions.I sure wouldn't advise it if you plan on seeing any dirt. I noticed way too much dust etc on the support frame on the motor side of the filter in mine. I'll stick to no-toils and the stock filter.