F1 tuning claims 30% hp increase, 40% tq increase, you believe it?

I think opinion are just OPINION, and even yours is wrong
here is the proof![file:///C:/Users/Vaio/AppData/Local/Temp/moz-screenshot-2.png](file:///C:/Users/Vaio/AppData/Local/Temp/moz-screenshot-2.png)