I do not have a Mach 1, but I do have steeda tune on my GT premium and it is a great tune, big difference in throttle response (no more pedal lag), and the shift points are much better with the 10r80, the car runs much better than the factory tune.
Yes I bought it when they released it. From my review in the Steeda thread. This is my opinion when I put the tune in, I did not use track.
I have the Steeda Whipple tune in my 2022 Steeda Mach 1 Whipple 6-speed manual. So far, since the vehicle is still not broken in, I have no significant issues, but I think I will need to have it re-tuned once I can go Wide Open Throttle (WOT). I have 700 miles on the car, and I have tried to accelerate (not WOT) harder than normal, and sometimes I get bogged down, like the fuel is not flowing enough or the ECU is stopping the car from hard acceleration. Now, I am not a tuner, so I am just assuming that a revised tune would be appropriate after a break-in period, and this would be a normal situation. Otherwise, I am not seeing any issues that would cause me any concerns.
Yes I only use 93 octane too which was what my tune was for.
