Out with the old and in with some valvetronic mufflers.

Out with the old and in with some valvetronic mufflers.

This 997.2 came in this week for some valvetronic muffler install. The valvetronic mufflers are similar to the Porsche Sport Exhaust (PSE) in that they have a bypass valve which will open and close depending on engine vacuum….ie, higher RPMS where there is lower vaccum, the valves will open and bypass for a more aggressive sound, but at cruising rpm’s, the exhaust is quiet. These are similar, but controllable through a wireless controller where the driver can choose to open the exhaust bypass full time, or close it when they want it quieter. Pretty neat system.

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