[88Racing]

I don't want to lead you to think that your truck is running lean but it could be the problem.
My best advice is to put the stock intake back on and the put the cai back on when your upgraded gryphon comes back with your custom tunes.
It's hard for me to say it's running lean because I can't hook up a wide band to see what the afr actually is.
K+N is one of the least agressive cai's on the market also.
04-05's were known for lean programming from the factory.