K&N Air filters

vincecssd · L Plate Warrior Joined: 17 Oct 2005 Karma :

Anyone fitted them to their bikes?

I have an ER-5 and have been looking at ways to improve it, I dont want to get a better bike until I get more experience with this one as I am quite new to biking.

So the £30 quid for a new air filter, worth it or not?

SoND · World Chat Champion Joined: 10 Jul 2005 Karma :

You don't get a massive increase in power, it drinks petrol and makes the bike louder.
____________________
Go back to bed - You have no rights - "Streetfighters ~ Mainstream motorcycling's crackwhore sister."

dainesefreak · World Chat Champion Joined: 04 Apr 2003 Karma :

McJamweasel · BCF Junkie Joined: 22 Mar 2002 Karma :

romperstomper... · Trackday Trickster Joined: 13 Jan 2005 Karma :

Look nice ,sound nice but attract the dirt and not very good for the engine ......so the bike mechanics told me !
____________________
Yeah I know !

kwacky · Nitrous Nuisance Joined: 28 Dec 2005 Karma :

craigs23 · Mr Muscle Joined: 08 Jun 2005 Karma :

I was informed that K&N gives a marginal increase of air-flow in a standard airbox. Best/only (?) advantage is being able to wash the filter, instead of replacing it as you would an OE part.

Zimbo · World Chat Champion Joined: 09 Jul 2004 Karma :

I pretty much guarantee that changing the filter to a K&N will not give you any noticible change in performance at all.
Fit race exhausts and a dynojet kit and the bike will pick up a couple of horsepower and be a lot smoother, a noticible difference in ease of riding, but the actual performance increase even then will be marginal, nothing you'll be able to tell just by feel on the road.
My advice would be to spend your money on the suspension instead, the bike will be more stable and will corner harder and faster, the brakes will work better, and tyre grip and life will improve. New monorate fork springs and a rear spring will cost less than a hundred quid and will transform the bike, a difference you definately will be able to feel!

mrchips · World Chat Champion Joined: 05 Mar 2004 Karma :

Just a waste unless you're going the race can power commander route
____________________
Northern Irish? www.nibikers.com

craigs23 · Mr Muscle Joined: 08 Jun 2005 Karma :

Coupled with an exhaust and jet modifications, won't the K&N 'performance' by masked anyway? I'm running a Dynojet kit with a full Yoshi system with a standard airbox and filter, the increase in performance (espeically midrange) could easily cover the addition of a K&N.

I guess the only real way of answering that is by trying one now to see whether it would make a difference.

romperstomper... · Trackday Trickster Joined: 13 Jan 2005 Karma :

I have to say mine starts first time since fitting one ,never did before Thumbs Up

____________________
Yeah I know !

mchaggis · World Chat Champion Joined: 09 May 2004 Karma :

craigs23 · Mr Muscle Joined: 08 Jun 2005 Karma :

Or the original needed replacing anyway?

palmer · Fiddled Kiddy Joined: 21 Jul 2004 Karma :

im not chaing to a k&n. my airbox makes a beefier noise than my engine+exhaust so its staying Laughing

kawakid · World Chat Champion Joined: 15 Mar 2005 Karma :

DynaMight · World Chat Champion Joined: 27 Oct 2004 Karma :

Cant tell the difference in performance but you can wash them, Saves ever buying an airfilter again. If you come to sell the bike then just sell the filter sep, they'll always fetch £20-30 on Ebay.
____________________
My bikes are at https://www.bikepics.com/members/dynamight/