K&N Air Filter

[Johnnylad123]

It's coming round to service time and I was wondering just what benefit a K&N has over a paper filter other than being re-usable? Had the pod style ones one my X7 years ago but all these seemed to do was cause loads of induction roar!!

[slappy]

If you are keeping the bike a long time it is a worthwhile investment,  a small ( very! )  power increase is another benefit and to me that is about it.

[Johnnylad123]

Cheers for that, confirms my suspicions it's probably not worth it.

[PieEater]

More free flowing than the OEM paper filter so has the potential to upset the fuelling unless the bike has been rejetted especially in the areas where the bike already runs on the lean side.

[Falcon 269]

If you want to fit a reusable filter, I suggest you try a Pipercross not K&N.  The latter don't always fit properly, requiring some dremel time to fix that. 

Pipercross are a lot cheaper, too.  Buy from Trumpet Tyres on ebay - they're the suppliers I use and are the best price out there.  Tell Chris that Mike from the Fazer forum recommended them - great service, always.

[ptolemyx]

Only potential problem with oiled filters like K&N and Pipercross is when folk use too much oil, use the wrong oil or don't clean them properly prior to servicing the filter.

[robbo]

I use the Pipercross and they sell a dedicated cleaning/reoiling kit with the necessary instructions, but agree with the advice given by ptolemyx.

[kitcrazy]

Pipercross on eBay for £35 just ordered mine.