I would say my best gain is in my right foot. And the big amount of kilometers i drive. I have 60 liters + a week so i have a good and fast response on my changes. My scangauge did help some. But just to fine tune it. Also the tire preassure is an easy thing. Afther that i did a 50% grillblock and recently a downsloped small spoiler and some minor gapseals. Yesterday i did a 1:18.5 at 3c° outside. My record tank of 1:20.4 was at 30c°. And that was with only the tires and same driving style. Will have to see what it does in higher temps
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