K&N Air Filters

[anth82]

Hey all, just wondering if anyone has installed one of these (or another brand for that matter) and did it make much of a difference?
Thanks
Anthony

[flashpixx]

I was gunna say try search but the three letter limit is a bitch...

I have a BMC in the viffer. Did make an immediate difference in fuel consumption, and a slight difference in engine response in the low rev range. No apparent difference in the meat of the torque or power bands tho. I run fully stock otherwise. Perhaps if all three mods were done (pipes, K&N, and Power Commander) you may see greater benefits.

[Ken Oath]

I stuck one in the XJ....can't say I really noticed any change performance wise.....but then again, ....let's not go there.

The main reason was money. Saves buying a disposable air filter every few thousand kms.
The price of the K & N was less than the price of 4 standard air filters.

[-JC-]

I think the main advantage is being able to clean them. I do interim services on the bike between the scheduled ones, clean the K&N, change engine oil, etc. It's surprising how much crap can end up in your filter. A $20 recharge kit gives you heaps of cleans. Other than that I couldn't notice any difference.
-JC-

[Rich...]

I think you will find the only advantage is the re-usability of the filter...

If there is a performance gain it would be minimal..

[Hornet]

They're supposed to be less restrictive and give a better 'flow' from blurb I've read about K&N.

[gytr_r1]

I have a DNA filter... no idea if it's any better, but it seems to do the job... supposed to flow better than any of the other brands

[Rich...]

There comes a point were it can flow as freely as it wants. But then the flow of the inlet tract/ valve stops any benefit.

They say they flow better..but is that a bench test?

[Captain Starfish]

I've noticed zero difference since fitting mine - again, it's the clean+re-use that's the beauty.

[Aphex]

A little crispier throttle response & reduced fuel consumption since i fitted mine. A little bottom end improvement but nothing huge in the power department.

[Incognito]

I fitted K&N filter to a 2litre Capri I owned in UK a few years ago.
Found a slight performance increase, slight fuel usage increase. Nice induction sound though.
Tried to have a K&N fitted to the 'Ace but it failed to arrive in time to be fitted in its last service.

[anth82]

Yeah I thought as much, thanks all for the responses

[maya]

For what its worth, I have K&N air filters in both my CBR400 and my R1.

There was no difference in the R1, however the 400 did "breathe" better. I had less problems starting it in colder weather, and it had more "go" in the top end.

[thro]

Have one on the cage. The big thing with K&N from what I've seen is that when dirty they flow almost as well as when clean. They're also cleanable/re-usable.

However, on bikes, I understand that these days the OEM filter is pretty damn good.

I mean really... if you were honda/yamaha/etc selling bikes in the hyper-competitive sports bike market, and were looking for an easy 3 extra horses... and discovered that the air filter was a massive restriction, you'd do something about it right? Especially if you could sell the more expensive filter over and over again every time the bike is serviced?

[Mongrel11]

I replaced my air box on my GSXR1100 street fighter with K&N Pods with the inclusion of a Stage 3 Dynojet kit through Carbies.... Yeah... sucks fuel.... but what an awesome midrange....

J