Valve controller kit included – necessary for cars without PSE and optional for cars with PSE to provide manual valve override.Direct bolt on installation – instructions included.
Unlock the valves and you’ll be ready to turn off the radio, roll down the windows and hit your favorite back roads or go hard at the track. While in quiet mode with the valves closed you will have a refined, sporty sound with no drone and retain the ability to quietly enter and exit your neighborhood without annoying those around you thanks to the high quality mufflers. By reducing weight and implementing a valve system that offers a true night and day difference, you will instantly gain the response, character and sound that your car deserves. Porsche fits a restrictive and bulky exhaust system onto the 981 Cayman / Boxster, robbing it of its natural power and sound.
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