K & N after market filters?? dealing w/ smog.. on 1999 Honda Civic

Does CA require stock air filter/vacuum sytem for smog? Are the k&N systems worth using on a 99 civic?

by in Yreka, CA on August 16, 2013
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1 answer
ANSWER by , August 16, 2013
Don't know about the smog deal, but don't waste your money on that K&N!