2007 BMW Z4 M Super Sprint Race Exhaust
This is an A/V comparison of my 2007 BMW Z4 M Roadster with the stock Exhaust system and the Super Sprint race mufflers and x-pipe I recently installed. The sound is deep. I apologize for the poor audio quality of the driving portion--the GoPro HD Hero isn't the best at capturing low-frequency audio.
BMW Z4 M Coupe Exhaust Update - DKF and Stromung
Installed DKF Section 1 with resonators, and Stromung mufflers. Full bolt on kit, no cutting, no welding. Conservative, deep sound, how it should have left the factory.