K&N 69-3517TS vs. AEM 21-702C Cold Air Intakes
Trying to decide on an intake to put in my 2012 SEL. Anyone have any thoughts or experience on which one is better? K&N 69-3517TS vs. AEM 21-702C? Also, has anyone had any experience running an illegal CAI as far as emissions go, how would the state find out about it?