K guys, I have an AEM CAI and nothing else in my LS, well I'm like losing a lot of HP since i bought it and I was wondering is it because not enough air is going out than coming in?? or watsup? It feels like its being dragged sometimes like on warmer days. At night, it seems to be alright but not yet as good yet. I need to have a valve adjustment done too, will that help performance at all also? Thanks guys, what should i get next to improve air flow.

 

An intake works well with a header and exhaust system. I doubt you are losing much or gaining much with just the AEM cai.