What to do tune-wise on Octane 100

[LarsenGrind]

Hi Guys

I live in Copenhagen, Denmark and I have an export model '17 GT PP. Only power mod I've done is I put on the AWE cat-back touring edition. I always fill it with Octane 100, but I don't know what it translates to in US numbers?
I really enjoy the car and the way it sounds now. But although this car also is working as a DD familycar, I wouldn't mind a little more 'GO'.
The Ford Power Pack 2 is 1550USD and not roadlegal.
But my car already has lots of mods that are not legal here, so that might be an option.
Denmark is a pretty expensive place to live in, and we have pretty high taxes on most things, with cars being the worst. My GT was 110k USD. Anything that comes from outside the EU union and is worth over 12'ish USD is taxed like crazy, so hope to find something inside EU, to avoid paying extra.
What would U Guys do? What are my options as far as a tune? How do I get that ekstra 'GO'?

Best regards Lars :-)

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[Zinc03svt]

Have a tuner build you an 100 octane tune. Ran one with Lund on my 14 GT/CS. Is that 100 octane from the pump?

 

[LarsenGrind]

Have a tuner build you an 100 octane tune. Ran one with Lund on my 14 GT/CS. Is that 100 octane from the pump?

Yeah 100 Octane from the pump. We have had 92 and 95 for many many years. Then they introduced 98 a long time ago, and now we can get 100. Only 95 and 100 where I usually go to fill up.

 

[Andy13186]

It depends on how the octane is calculated, some RON "100 octane" can be more like US 93 octane I think.

https://en.wikipedia.org/wiki/Octane_rating#Motor_Octane_Number_(MON)

May be safest to get a 93 octane tune and put the "100 octane" in there that way you also have some lee-way if you get bad gas

 

[LarsenGrind]

I read up on it on the gasstations webpage, and from what I read it's the same as US 95.
With that in mind, would I still need to to for a 93 (US) tune?

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