EnglishManInNY:
The dealer told me Tubi and Porsche worked together - only the OEM exhaust warranty is impacted here in the US. Given the exhaust is replaced anyways that should not be an issue. 25bhp and 25lb Torque at the wheel improvements with better drivability. ~$8k fitted. In my cab I think the Tubi would make a big difference all round sound wise from what I heard.
Tubi and Porsche don't work together. Porsche has some ties to Akrapovici for low volume models exhaust systems but the version intended for the 991 Turbo S apparently wasn't ready for certification, despite it's lower weight. I guess Akrapovici will offer the exhaust system at some point but don't expect wonders from it.
@Wonderbar & @Rossi: No sound is cool? In what universe? Maybe you should get the new S class in AMG flavor. Oh wait, even this car sounds good.
I'm not happy with the 991 Turbo S exhaust sound, why should I lie. It is much better than the 997 Turbo S sound but still not enough. Yes, the quieter sound actually makes it possible to enjoy this car without raising eyebrows or getting middle fingers shown by pedestrians, this is true but the sound sucks. Period. I would want a raunchier sound in the lower rev range below 3000 rpm but...
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RC (Germany) - Rennteam Editor Porsche 991 Turbo S, Porsche Boxster S (981), Jeep Grand Cherokee SRT (2014), BMW X3 35d (2013)