[tenkies]

Originally Posted by andrewc89

If you want to open/shut them at will but don't want to buy the akra sound controller any of these will do the trick:

$27

http://www.bimmerlink.com/


$200

https://www.cgprecision.com/#!/VSC-1...egory=19726366


$400

http://machtschnell.com/exhaust-valv...vc-module.html


I have CG and use it with my Remus exhaust. Works great. Also integrates into the homelink buttons. Super cool.

Thanks for listing options and the links. At this point I don't feel the need to spend extra $ on closing the flaps. It's not a big deal to me but who knows later on down the road after I get a aftermarket DP.