What options are you looking for?
There is a mild-to-wild controller that allows you to open and close the dual mode when you want.
http://www.southerncarparts.com/corvette-mild-wild-exhaust-demand-switch-p-231.html
There is a mild-to-wild controller that allows you to open and close the dual mode when you want.
http://www.southerncarparts.com/corvette-mild-wild-exhaust-demand-switch-p-231.html