Required for Magnaflow Active Exhaust. When installing an active exhaust compatible Magnaflow System on your 2018-2019 GT Mustang you are going to need a set of Maganflow Active Valves. These Valves retain the use of your stock OEM actuators which are directly tied into your Mustang's powertrain control module, opening and closing the mufflers valving based on throttle position.
Application. This Maganflow Active Valve Kit is designed for use on active exhaust equipped 2018-2019 GT Mustang models with a Magnaflow Exhaust System part# 19368, 19369, 19370, 19418, 19419.