Blastin Bob, I'm looking for some help. I have a 2005 300C 5.7, with I believe has the rolled exhaust tips as I have read on the forums. The entire exhaust system is stock and I have the plan for a LegMaker Hammer intake for the near future. I want to add some noise but I dont want it too loud to take away from the luxury look. I'm not positive which kit would be better, the 5db or the 6db...? I dont want any annoying drone or anything, just enough to bring some life to the HEMI. Also I've been trying to locate some clear cut instructions for installation. Just curious to know how big of a job it is. If you could guide me in the right direction and possibly give me the part numbers to check out, I'd appreciate it. I'm looking to purchase asap, just need ur input to see which is best and would fit.