V60 – Chiptuning Heico/Polestar – useful?

Hello dear friends, I have been calling for 3 months a V60 T3, year 7/2011 my own. And what am I supposed to say – I’m overjoyed. Now a work colleague has latched on me that I should seriously think about a (chip) tuning. Apart from the performance increase this should also be reflected in the consumption (positive). So I fell on google and have read a little cross-read. It has come out that – if you turn on the power screw – you should definitely rely on something from Heico or Polestar. Unfortunately, nothing is offered by these manufacturers for the T3 – or am I just pissed off? Is there also alternative good and trustworthy suppliers? Furthermore, I wonder if the engine does not “suffer” if you make a chip tuning? What are the risks and side effects? And is a chiptuning basically a profit for me at all? For your experiences and advice I would be grateful, dear greeting, Simon