I've been searching around on the Internet and have seen lovely numbers and company's saying ull get 5-10-15-20% more power from adding an aftermarket intake. But I've also seen videos that show the gain from just a cai to be far less. Are they really worth the money they charge or are they just useless. I'm not trolling I'm Just genuinely Curious. Want to know b4 I spend the money. And what intakes everyone have been using, And seeing Significant power gains.