You serious or just talkin?
My 2007 M6 cab had the K&N cold air Induction and the eisenmann cat back sport exhaust with the dual oval tips ... Was very nice and respectable for the V10!!!
The 4.4L twin turbo is nice for power ... Exhaust note not so nice ... The turbo's are essentially another muffler.
anyone who had first hand knowledge ... Your opinion Would be nice ... I assume the Arkym exhaust as part of the competition pack is why BMW had done so ... Hate to say it, but my 2015 S63 Amg, and my 2011 S63 Amg had better exhaust note ... Or my 2002 Chevy suburban with borla cat back have a more commanding exhaust note!
If cat delete is like eisenmann race ... Than Arkym it is ...
