[747flyboy]

Guys, I need a serious advise....I installed OEM M5 exhaust to 2011 550i F10 M package with custom made free flow Exhaust Manifold (downpipes) matched with a software.
The power gains and band are immense and so is the sound.
The noise is a Love or hate relationship.
I am seeking an advise to what to do to tone the sound level down a bit..I donnot want to basterise the OEM exhaust....Therefore my best option seems to be couple resonators within the Xpipe section. I would greatly appreciate if you guys can tell me what are the best resonators money can buy to match with this beautiful 3" OEM M5 exhaust or any other ideas to quite down this beast.