Make sure to check out Part 2:    • Installing a Veloster N VALVED Muffle...  

In this video we prepare the Veloster N variable exhaust for install on my Elantra GT N Line. This includes opening the valve actuator and modifying it to work with a momentary DPDT switch, wiring the switch and controller, and of course getting the physical exhaust fit to the Elantra GT N Line/Sport bumper. In part 2, we install the exhaust on the car, run power to the controller, and run wiring from the controller to the valve actuator.