ACTIVE EXHAUST FOR SC/CARRERA

Now you can have the sound and performance of a Sport muffler combined with the tranquility of a Street muffler!  We have created a true DUAL PURPOSE MUFFLER for your SC/Carrera using the OEM heat exchangers.  This muffler will reduce back pressure when you get on the throttle producing MAX POWER and a SPORT SOUND.  Our Active Exhaust was developed on the dyno and tuned to open at an optimum flow level for these engines to perform at peak output, an improvement of 19HP was recorded for the 3.2L Carrera!  Exhaust flows through the pre-muffler or catalytic converter and final muffler during STREET MODE .  Step on the gas and the bypass valve opens allowing the appropriate reduction in back pressure to optimize power and sound.  You choose the sound level at idle, cruise, and WOT.  The baseline sound level is controlled by the final muffler.  Use a stock muffler get a stock sound, sport muffler get a sport sound.  The sound level when the valve opens is adjustable using the dump pipe baffle that is included.  Leave the baffle in for a Sport sound, remove it for a Track sound.  YOU control the sound while getting all the power possible!  Carrera 3.2L engines get even more benefit when adding a matching chip that takes advantage of the reduced back pressure (chip not included).  Active Exhaust can be configured to use a bypass pipe (loud) or pre-muffler (standard) or Sport Cat, or CARB cat, your choice.  Everything needed it install this muffler and activate is included with purchase.