Anyone fitted a K+N or alike air filter

[Adventure Boy]

If so how do you fit it and was it worth it ? any performance gain noise increase
anything thats worth fitting it ??

Rob

[cas]

Thinking of a BMC as it would be cheaper in the long run as BMW wants to replace their filter every 6k miles.

[skapan]

I've seen so many bad reviews from aftermarket filters that I've decided to just stick with stock. Call me dull and boring, but I don't need issues, rather be out riding.

[Winger]

If I lived in a desert then I probably wouldn't but I don't and I'll fit a K+N just like I have with my other bikes the exception being my 660 which has DNA.

[ogden]

If you're going to fit a more free-flowing exhaust as well, and have it remapped, then you might see a benefit. If not, don't bother.