I got the Magnaflow muffler replacement (#14815), high-flow metallic spun converters (#59955), and the resonator deleted today on my '02 C240 2.6L V6 W203. There's obviously a major difference in sound (in a good way) and seems to be more power in mid-range and top end. There's not a huge difference in low end power as expected. No SOS warning either...thank God!!!

I'm very please having only spent $500 on all the components and labor for a "close-to-full" free-flow stainless exhaust as opposed to $800+ for just a muffler replacement system (Eisenmann/Brabus). The tubing is already mandrel bent from the factory too. Next up is dropping it off at Bosch for an ECU tune and pulley!