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Cleaning the Gruppe M filter

If it is a cloth type filter like a K&N, one of the cleaning/oiling kits should work fine.
 
I used the K&N cleaning kit on the filter. For the outter shell, I just wipe down with general cleaner around the house, or mostly just water and towel.
 
Gruppe M or M's is just K&N Japan. Use their kit.

I just cleaned out mine after 2 years and I swear I feel a difference :biggrin:
 
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