Hello everyone. Just received a new X-Cal3 from Brenspeed. I had been using the Predator. My question to you is this, do I have to return the vehicle to stock with the Predator before installing the Brenspeed tune with the X-Cal3?

Jon

 

I just got into this, and am by no means an expert...but when I installed my tune two days ago the X3 recorded the Stock configuration. So I guess if you want 'Stock' to be your current tune then it's fine, but if you ever want to return the car to stock you're SOL. Otherwise return car to stock before programming.

 

I'm guessing yes. I do know if you don't return to stock on the Preditor, your Preditor will become garbage. My suggestion is return to stock and sell Preditor as used $$$$

 

You will have to flash it back to stock for sure.