Has anyone out there removed the center resonator on their W208 CLK55 and replaced it with a simple straight pipe of the same diameter?? Also, I note Supersprint actually makes an "upgraded" center resonator for our cars as well as the rear muffler. Anyone try one of these out? I would like to help my car breathe a bit easier as well as add a bit of testosterone to the exhaust note. Any input appreciated! Thanks.