Hey guys,
nice expert forum: informative with lots of VAG know-how.
I am a turbocharger tester (Golf MK7 R GTI, etc.) and share experiences.
After driving a Golf MK7 (2013) I now enjoy tuning my Leon Cupra (Golf MK7 GTI CS twin).
Ask if you have questions regarding stage 3 upgrades - maybe I can be a bit a helpful with mods, etc.