i modded my SE exhaust with an electric cut out, $60 off ebay with controller and a hard wired switch, i tend to leave it open most of the time as it sounds soooo much better now. i have the switch currently mounted in the trunk but plan on switching it to open when i select sport mode.
2010 XC90 exec, winter machine (V8 of course)
2004 RS6 official Canadian edition, Daytona grey, (best colour!), summer edition
2011 Q7 TDI, general alrounder