It should be even more impressive that Toyota can manufacture one that isn’t hand built and can handle it.
Let’s get back on topic.
Have had mine OTT tuned 5 weeks now. MPGs are exactly the same if not a smidge better. Spools quicker and holds 8th gear like a dream.
My GLA45 had approx. 200hp per liter. And then I tuned it after that. Never an issue.
125 is nothing. Also, thanks for dropping in to tell us all you’re not interested. :facepalm: