I have a 05' MR, and I have XEDE, turbo back system installed. I have tried the stage zero plus map without problem, but I have tried stage 1 map, and it seemed
to improved the performance noticebly.
What may be the danger of using this map in my car?

 

If it's an MR/05 map it is Ok, if its a 03 map boost may be high.

 

I have a 05 GSR and have noticed an improvement going from Stage 0+ to Stage 1 map.

 

Something weird happened yesterday when I try to accelerate from 4th gear,
I normally drive without AC on, but I did last night. And at about 5000RPM,
there was a sudden hesitation from the engine, like a fuel cut near red line.

I went back to the stage zero plus map mow, I had been running a stage 1 map 93 octane, my car is a 05 MR, xede, turbo back added.

Thanks