CUEBALL, even though it is 6 years later from your post, I am looking to purchase Blastin Bob's 5 db 225SSR for my 08 300c Hemi. I have had second thoughts about drone, but after reading your post you said no drone, I will definitely invest in them.Just deleted the resonator, still have all the rest of the stock exhaust. I got the (SSR225?) version since it was advertised no drone... not a whole lot louder but just enough, and no drone. Looks better too.. otherwise, I didn't want super loud since its a sedan, but it does sound a bit meaner.