Just added an Injen CAI to my list of upgrades and so far I love it and I havent even tuned it yet. I have JBA headers, Cajun B-pipes and stock everything else on my exhaust with the exception of a 22 inch Maganaflow muffler. I really like the sound although there is some drone which I may look into a resonator for, but I'm wondering if I'm selling my truck short performance wise and I should look into getting a cat back exhaust? Or even just by adding something like a Cajun cat back using my current muffler? Thoughts?