I know everybody has their own opinion about this. Whats the best CAI I can buy. I have this idea about going with the AEM because its what Scion uses stock, but then I have this other idea to go all the way and buy the best. It wont ruin the warrenty or anything will it? I like the look of the Weapon R intakes. I have no clue what im doing, and I have no clue about cars so I need a little help on what to do. Thanks.

 

INJEN!!!!! =)

 

Injen or K&N, both are probably cheaper than the AEM, especially if you get it dealer installed (don't do that). As far as warrantn, well it might void part, like the warranty on the MAF. At least that is what Nissan told me when I put one on my old car.

 

Yes, get what u want. If you ever have an engine issue, keep your stock air box and switch back before you take it in.