Hi Wulf. Did you get this problem sorted. I've got the same trouble. Screen reading 91 octane while the 93 octane with 2.7 pulley was being loaded.Cheers.

When loading the 93 with 2.7 pulley on 2012 GT500 :?: , 91 octane is displayed at the bottom of the screen. I've taken it back to stock and tried it several times but still shows 91 octane. I can't be sure if the correct tune has been loaded. Is this normal? The i2020 has been updated. No more ...

Can anyone enlighten me as to what tunes are on the i2020 for 2012 gt500. I've searched the web but to no avail. ie. what size pulley tunes, what cai's are supported etc. I cannot believe this info isn't readily available for potential purchasers. Thanks.