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looking to swap mine for a K&N model, but can't work out how to open the filter box.

http://www.partsbase.org/vw/polo-derby- ... ing-parts/



By colors

Excellent. A good little job for a rainy weekend. Thanks, Ciclo

Anyone know what the little hose labeled as number 14 on that diagram is? Not the water drain, the other one.

Let me know if the K&N makes a difference, how much have you paid?

To see the last 10'' of this video...

Apart from the power gains being dubious at best which is illustrated in ciclo's video above. If it's an old school "oiled cotton" filer which many of the K&N filters are, the oil from the filter can find it's way onto the airflow meter contaminating it degrading it's performance. Even high performance cars like Porsche, that make 300bhp+ use paper elements without issue.

Lol, ok I think I will abandon the idea. Thanks for your input, guys.

Is it being swapped for a panel filter or induction kit? Only thing really swapping it for is a panel filter/ direct replacement filter. And thats only due to the fact they generally dont need changing as often. Induction kits make no difference on most cars.