Exhaust options

[Simon_h]

I have a twin cam 2010 GS adventure and even with the new flappy exhaust I'm finding it too quiet. I'm guessing there's going to be very little performance gain in replacing it, but what are the best makes to look at? I assume a powercommander will be required to adjust the fuelling and smooth things out?

Thanks in advance.

 

[Gremlin Serbia]

This is the best choice:

http://www.akrapovic.com/motorcycle-exhaust/products/bmw/

http://www.akrapovic.com/motorcycle-exhaust/products/bmw/model/r-1200-gs-2004-2008/