I've got a VF2 SSV redline with factory bi modial mufflers, now I always have the flaps open in loud mode, you can clearly see the flap is open when you squat down behind the car and look up both exhaust tips closest to the centre of the car. now after reading this I got another person to check to see if the valve shuts at the 3000rpm mark as stated here.....it doesn't! it stays open in sports mode right through the rev range, and doesn't shut when the car is turned off. I even rev'ed the car up to like 5000rpm and with an observer watching to see if the flap closed or not, but it stayed open like it was told through mylink. so not sure why people are pulling fuses out, or if the series 2 redline is programmed different, but I thought I'd write this to maybe stop some misinformation, and maybe help someone who might need quiet mode on command (like the guy who leaves home early in the morning and wants it quiet). So just to reiterate, my VF2 SSVR bi modial mufflers stay in "loud/open" mode when selected, right through the rev range and when the car is switched off, and before anyone suggests maybe they are broken or something, they function perfectly and close if sports mode is turned off through the Config menu on the Mylink stereo.
Check to see if yours stay open before you go pulling fuses out!