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If they messed with the shift timing, it might just need a small adjustment to the WOT SPEED/RPM. Hopefully it's just something small.
I can't, of course, comment on your situation, but from what I can tell, it sounds like I was in a similar situation as you. I, too, started with a T93, when HPTuners said it would NEVER be unlocked. So - I got a HHP T87a-conversion, and it worked just fine. Then, of course, HPTuners did unlock the T93, so I, of course, had to unlock mine and spend more $$$ on the credits (I accept responsibility, lol). But - I was able to use the exact tune file from the T87a for the T93. I didn't mess with much of the shift scheduling though. I spent a lot of time on other aspects, especially after HPT released the extended definition list, but, knock on wood, I haven't had issues.
Hopefully this gets squared away for you.
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'20 ZL1 Black "Fury"
A10, PDR, Exposed CF Extractor
Magnuson Magnum DI TVS2650R // RFBG // Soler 103 // TooHighPSI Port Injection // THPSI Billet Lid // FF // Katech Drop-In // PLM Heat Exchanger // ZLE Cradle bushings // BMR Chassis-Suspension Stuff // aFe Bars // Diode Dynamics LEDs // ACS Composites Guards // CF Dash // Aeroforce // tint // other stuffs |