installed a K&N CAI and a magnaflow exhaust on my 04 1500 with a 5.7. Now I am having issues with the throttle. As soon as I step on the gas it bogs down and then will take off after a delay. I have replaced the plugs so I am pretty sure its not that. Anyone have any ideas?

 

reset the pcm. If you don't know how, do a search on here and you will find the steps.

 

That bog has probably always been there, just more noticeable now that you freed up some power. Mine did the same thing. Its the fly by wire throttle, less noticeable now though.