Unfortunately, I need more information to answer this question accurately. The firing order of a Porsche engine varies depending on the specific model and engine configuration.
Please tell me the model and year of the Porsche you're interested in.
For example, tell me:
* Porsche 911 (1999) or
* Porsche Boxster (2015)
Once I know the specific model and year, I can tell you the firing order.
