Looking to start my upgrades on my truck, 12 f150 lariat 3.5 and I know a CAI is one of the obvious go to's for most. I have read that going with a CAI has no real effect and running a good air filter will produce the same results. but have also read that cold air is a must have. before i go and drop hundreds of dollars on one, am i spending my money in the right place? if so, which one should i go for?