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K&N air filter

5300 Views 11 Replies 8 Participants Last post by  walsi
Just thought I'd let you know I ordered a K&N replacement air filter for my 113 yesterday :D, I'll let you all know if I see much improvement once I've installed it!

Benz Bling
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adamuk said:
K&N filter installed in my van. Made no discernible difference at all I am afraid :(
My experiance with K&N filters on the bikes was far better than with foam type filters, which suffered in the wet soon getting saturated and blocked.
K&N filters are pleated so have a much higher surface area than paper or foam filters, this increase in surface area allows more particles to be filtered out before the filter media becomes blocked. A new or newly cleaned K&N should flow more air than a new paper filter but a 10 or 20 thousand mile K&N will flow far more air than a paper filter with the same use.
K&N say a Rover V8 will gain 4 to 20 bhp, that could be depending on state of tune, say between 3% and 10% more power.
The Vito has a better standard induction system than that of a 20 year old Rover, so I doubt you would notice a big gain.
That said after 6 months of use a K&N should flow more air than a paper filter and hence better economy and less black smoke, may even help get past the MOT test.


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