I said it a couple of pages ago and I'll say it again. For anyone who doesn't want to spend the $7k (or whatever it will cost), if an OEM Exhaust Mod (non-perforated) ends up being an option then I would HIGHLY recommend it if it's anything like the E9x sound. $350 and sounds amazing! I honestly didn't like my E93 M3 when I first bought it, as it was way too quiet, but since my OEM Exhaust Mod I have absolutely loved my car, especially with the roof down