K+N Filter, should I bother?

[nobby]

good kit

hi there

I had my k&n on my work bike for more years than I care to remember changed the bike every 200,000 miles tooke the k& n out cleaned put in the new bike fit and forget for the next year 50,000 ish miles.
Must of done 800,000 miles still going strong

cheers nobby the ex-couier

 

[TERRY RYAN]

hi there


cheers nobby the ex-couier

Nobby Did you get the sack ???

 

[Steptoe]

Nobby Did you get the sack ???

No, he blew up his engine, due to inadequate filtration

 

[jimbo]

Pipercross actually back up their flow claims with dyno charts, or did the last time I visited their website.

I can't speak for bikes, but K&N have a good reputation in the car market, and independants like David Vizzard (general god of tuning) have verified how well they perform.
Paper filters flow less when they get only a little dirty, whereas K*N still maintain a high flow rate, so are ideal for dessert racing....

 

[Bigtwin]

I got one with the larger air intake. It's nice - crisper on the throttle, and sounds better too - nice induction noise. And my MPG has gone up too.

 

[pomm001]

I sell new airfilters for a £5

I dont have a K&N filter, and it doesnt keep me awake at night,
for that sort of dosh i would rather spend the cash on buying some decent lights and get a new filter from steptoe for a fiver once a year,
but hey ! whatever floats yer boat

 

[luckylucian]

Go to the K&N website and look up the amount of oil suggested for your filter, saves overoiling it

 

[jasper]

Hi
can't recommend K&N filter with accelerator. I think someone has said before that it causes the engine to run even colder and the increase in petrol consumption unacceptable. I ran both for a short while, swopped back to standard filter and mpg back to around 45 to 50 !?

 

[ducatiparts.110mb]

to sum up. - paper oem filters are better at filtering but worse at flow rates.

Maximum air vs minimum wear.

I've just given my RT its 12000 mile service and the filter was full of stones and gravel. Going on the state of it I'll be changing it every 6000 from now on - taking into account how dirty it was though, I wouldn't trust a washed filter to either be clean enough after washing to flow well, or still retain any filtering properties after a couple decent washes, so to get to the point, I'll be staying with pleasted paper ones.

Interestingly both the oe one I removed and the replacement I bought from James Sherlock both had "Mahle" printed on them. I'd guess that they come off the same production line and the oe ones just get a bigger space on the label allocated for the extra digit in the price.

 

[presto]

+1 for the k&n.

K&N came on my bike when I bought it but I don't think any previous owners had bothered to clean it. It was boggin with stones and flies so I went down to halfords for the kit (£12.99) and proceeded to clean it with brush, toothpick and tap water. It's pretty idiot proof and a hour later it was oil'd and back in the bike.