Just popped out to make a quick video on my iphone, excuse the bad quality and its hammering it down out there - I'll dry to get a better shot of the exhaust when the suns out and some drive bys.
Ok, so the M5 Exhaust was purchased from Tuner Motorsport, very good service, paid for it online on the Monday and it was delivered to my house on Thursday, direct from the US of A !
Cold start up is very loud, it idles at 1500rpm for about 30 seconds and its quite loud, then it drops to about 800rpm and its sounds like the standard setup.
There is a distinctive drone between 1600-1900rpm but once through that no droning at all - 75-85 on the motorway in 7th is quiet like stock. When you go past 4k rpm though, wow, totally new sound, you can almost hear the pistons in the V8, you no longer need to drop the windows to hear the sound, it almost sounds like a V12 ! Great noise, not obnoxious load, just a very cultured sound and more crackle and pop on the overrun.
I would recommend this to anyone before spending £4k upwards on an Akrapovic. By the way, Evolve did the install and a very good set up they have going on there, about 4 M5s, 2 M3 E46s, an M3 V8 and a 964 Turbo thrown in for good measure ! Speak to Imran, he's a good chap.