OP - Optional part
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.
PERFORMANCE:
| Unit | Stock | Akrapovic | Max gain |
Weight | kg | | 0.5 | |
| lb | | 1.1 | |
Installation time | min | | 60.0 | |