I’ve had an IE tune on my MK6 R for a few years now (their “Pro” tune) - probably 3-4.
I’ve had it on various track days, road trips, out to WitW, etc - and it’s always great. I’m in an area with 93oct, but I run 91oct since I don’t want to mess with flashing it often, heh.
I’m a bit bummed. I haven’t been to this forum in forever. I saw they are no longer selling the IE450T kit - and I am ready to go big turbo. Ah well. Hopefully this platform (the Golf R) continues to live on a bit, or else I’ll be moving on as well since I like to always have a bit of space to grow without doing something fairly custom.