not that i know of. the problem is the nissan maf are very sensative. so if the filter comes oiled dont use it. and if it wants you to oil it than dont. ive had a dry filter on mine for 20k and no problems. even seen some people oil them and be ok but from personal experience at nissan i saw lots of oiled k&n filters screw up maf. so just dont use oil and you should be ok
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