Soooooo aftermarket CAI IS NOT any better than stock. Does not increase HP over stock. But if you buy a system with a bigger MAF tube your gonna need a tune. All this relates to a stock 5.0 with factory HP and no internal engine mods. Well, since i'm not going to build a huge monster hp engine I would have to say that an aftermarket CAI is a big waste of money if your looking for a few extra hp. I don't want a $350 cosmetic under my hood. But I'm not knocking anyone who does want this item.