K&N air filter

walsi said:

I know from the motorcycle side that K&N filters arn't allowed to flow any more air than standard filters, i would think the only advatage would be by fitting an induction kit and doing away with the air box but you then have the issue of noise. I stand to be corrected on this but i know they don't make any difference with bikes and you need to look at different manufactuers if you want increased air flow. If only Carlsberg made air filtetrs

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Back in the days when i had road going two stroke bikes (men were men & sheep were worried) the easiest tuning mod was to fit K&N filters with an increase in the main jet to take advantage of the extra air flow through the engine the filters gave you. If you didn't check/change the jetting you ran the risk of putting a hole in a piston.
The increase was minimal but the filter(s) were reusable & that was probably the main benefit, you never had to replace them, just clean & re-oil every service interval.

Ugly