Thanks for the clarification, I appreciate it.
Unfortunately everybody who reads the performance table thinks that these very good results are valid for the "standard" 993 Turbo RS-Tuning kit with 520 HP.
Like I said before, this can't be right as I have a real life experience with several tuned 993 Turbo compared to my 997 Turbo and compared to the RUF 550 997 Turbo.

We should also maybe mention that some of the tuning kits from Tuners are NOT streetlegal in Germany. They impress through performance figures and high HP outputs but since they couldn't be homologated in Germany, this means that they're not really safe. I won't even start to argue about emissions...