This is Corsa Performance’s new Active Valve Cat-Back for the 2018 Mustang GT with Polished Tips. When the valves are open is rated to be Corsa Xtreme sound level and Corsa Sport sound level when closed.
There is no drone with the Corsa exhaust system due to RSC technology to eliminate problem frequencies that cause interior drone at cruising speeds.
Corsa Xtreme systems are for customers who want an aggressive sounding high-performance unique exhaust with a distinct rumble at idle.
Corsa Sport systems are for customers who want an aggressive sounding unique exhaust but who do not necessarily want to hear it all the time.