Forgive me if im asking a question that has already been asked. Ive not been on the site in a few months and trying to back into the swing of things especially into fixing up my truck. Im selling the camaro and want to do some thigns with my truck. 04 QC Hemi. I have dual exit flows but i found gibson headers for 388 bucks. Also JBA headers for 400 or so. Has anyone put them on? Was it hard? Notice much improvement? I think hearders is what i want to do next. Then the hypertech plug n play deal. So let me know what you all think.