Earlier this week one of my customers hit the rollers and managed to get his car tuned on 91 octane fuel as well as ethanol.
The results speak for themselves. This was a 4th gear pull on the base 6266 T4 1.15 a/r turbo and upgraded (to 1000cc) injectors. This is out of the box, bolt on performance. 6psi of boost by 3,000 RPM to boot, not to shabby for
just a single turbo.