K&n Air Filter, Are They Worth The Money?

7472 Views 26 Replies 11 Participants Last post by Nils125, 9 mo ago

josh

Discussion Starter · Nov 15, 2012

Hey guys, just a quick question, does anyone have a k&n air filter and do they consider them to be worth the money they paid for them? ive seen them between £35-£40 and im considering

cheers.

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1 - 20 of 27 Posts

Jed

· #2 · Nov 15, 2012

josh said:
Hey guys, just a quick question, does anyone have a k&n air filter and do they consider them to be worth the money they paid for them? ive seen them between £35-£40 and im considering cheers.

Will increase air flow much more so than stock.
BMC are also worth looking at

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Reactions: 1

Omar

· #3 · Nov 16, 2012

josh said:
Hey guys, just a quick question, does anyone have a k&n air filter and do they consider them to be worth the money they paid for them? ive seen them between £35-£40 and im considering cheers.

And you can wash and use them again

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The K&N air filters are re-washable and should last the lifetime of the bike, I have been told by the father in law that depending on what bike you have, you can get anywhere between 3 - 10 bhp if you fit one!!

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Omar

· #5 · Nov 16, 2012

Kev pye said:
The K&N air filters are re-washable and should last the lifetime of the bike, I have been told by the father in law that depending on what bike you have, you can get anywhere between 3 - 10 bhp if you fit one!!

Bmc you can wash them and re oil them

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R125 Rob

· #6 · Nov 28, 2012

You will probable need to adjust the fuel-air mixture with one of these fitted... otherwise it might run rough!

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MRB3N

· #7 · Nov 28, 2012

Kev pye said:
The K&N air filters are re-washable and should last the lifetime of the bike, I have been told by the father in law that depending on what bike you have, you can get anywhere between 3 - 10 bhp if you fit one!!

3 to 10 HP?!

Never on a R125. Not even if you filled up with rocket fuel.

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MRB3N

· #8 · Nov 28, 2012

josh said:
Hey guys, just a quick question, does anyone have a k&n air filter and do they consider them to be worth the money they paid for them? ive seen them between £35-£40 and im considering cheers.

Just so you know josh, you can get the K&N Panel Air Filter and the K&N Oil Filter together including postage to your door for £40!

Bargain! That's what I'm getting this week or next. Heres the link: http://www.ebay.co.uk/itm/Yamaha-20...97?pt=UK_Motorcycle_Parts&hash=item46097519dd

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Mysterious Rider

· #9 · Nov 28, 2012

With the K&N air filter, you don't have to clean it and re-grease it until I think it is 50,000/100,000 miles. I've got the recharge kit for mine and it says I don't need to use it until then.

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Omar

· #10 · Nov 28, 2012

Irish Al said:
With the K&N air filter, you don't have to clean it and re-grease it until I think it is 50,000/100,000 miles. I've got the recharge kit for mine and it says I don't need to use it until then.

I recharge my every service

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Mysterious Rider

· #11 · Nov 28, 2012

bikerboy said:
I recharge my every service

How many uses can you get out of the recharge kit?

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Omar

· #12 · Nov 28, 2012

Irish Al said:
How many uses can you get out of the recharge kit?

I only use it 3times so far not sure

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MRB3N

· #13 · Nov 28, 2012

Irish Al said:
With the K&N air filter, you don't have to clean it and re-grease it until I think it is 50,000/100,000 miles. I've got the recharge kit for mine and it says I don't need to use it until then.

That's true. The oil lasts 50,000 miles. And the filter over all has a lifetime warranty or a million miles!

Perhaps bikerboy is re-oiling his everytime he services because he washes the filter?

But if you go with K&N's service procedure, you don't need to wash it till 50,000 miles.

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Omar

· #14 · Nov 28, 2012

MRB3N said:
That's true. The oil lasts 50,000 miles. And the filter over all has a lifetime warranty or a million miles!

Perhaps bikerboy is re-oiling his everytime he services because he washes the filter?

But if you go with K&N's service procedure, you don't need to wash it till 50,000 miles.

Yes I wash it every service and reoil it I know k&n say 50.000 but im no where bear that sort of miles so I'm just cleaning it while I have the airbox apart

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MRB3N

· #15 · Nov 28, 2012

bikerboy said:
Yes I wash it every service and reoil it I know k&n say 50.000 but im no where bear that sort of miles so I'm just cleaning it while I have the airbox apart

Fair enough. Now please reply to the Engine Flush thread!

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K9 JSB

· #16 · 10 mo ago

Kev pye said:
The K&N air filters are re-washable and should last the lifetime of the bike, I have been told by the father in law that depending on what bike you have, you can get anywhere between 3 - 10 bhp if you fit one!!

That’s a 20 to 67% increase in power.. from an air filter 😂

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enshiu

· #17 · 10 mo ago

Simota here

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Nils125

· #18 · 9 mo ago (Edited)

K9 JSB said:
That’s a 20 to 67% increase in power.. from an air filter 😂

I think it´s always a question how the standard filter / filter housing is designed. Everything is possible from power loss to power gain. It´s hard to predict.
When you look at the stock filter of the RE39 / RE40 model, you can ask yourself why they don´t use the complete area available? I think it´s simply due to cost, as it is cheaper having rectangular shaped paper / mesh element (K&N does the same) than a trapezoidal one like BMC is using.