Unless you hammer it, it really isn't that bad. Regular driving can keep the noise level down. The muffler isn't a regular full flow through muffler. When you step on the gas... Completely different story. A beautiful higher pitched whine. So happy with the results. I also have my resonators removed as well with the x pipe installed.
2008 BMW 650i Convertible- LCI.
- ACS style rear spoiler
-Eisenmann Race Exhaust, resonators removed, Magnaflow X pipe.
- LED Angel eyes, plate light and interior package
- Tinted Windows- Charcoal 20%
- Stock 19" summer wheels & 18" M6 Winter wheels