For vehicles with the base Porsche exhaust system, which is then replaced by the Akrapovič Evolution Line system, the Middle Valve Actuator Kit (P-HF1170) is a mandatory upgrade.
If the Evolution Line system replaces the Porsche sports exhaust system, the Middle Valve Actuator Kit (P-HF1170) is not required.
This is currently a special order, non-stocked part. Average delivery time is 4-6 weeks. If this part shows as sold out, please contact us to order.