for the cost of a decent SRi and the K&N apollo together, you might as well spend the money for a straight up CAI, the AEM CAI goes for $200. that would also depend on the year of your aveo too. I have heard that a CAI is not available for I think it was the 10 and 11s
However, if you already have an SRI, but want something more efficient, the apollo would be a good choice to add on