I had a 300 SRT in 2006. The best bang for your buck was the Diablo Tuner. The factory put big pipes on the SRT's and mine ran great. I did drive at the SRT track experience with cars that had the Corsa Exhaust. They did sound good, but I didn't see spending $1200 at the time for it to add a little sound. I would just change the mufflers if you want more sound. Just watch out for the dreaded drone.