All I can say is WOW!!!!
The Brenspeed X-Calibrator 2 made a world of difference. My 07 Mustang GT performs like a completely different car. The throttle lag is completely gone. I initially programmed the car with the 87 octane tune and was amazed at the difference over the factory computer settings. I drove it for a short time with the 87 tune then reprogrammed it with the 89 octane tune (I had filled the car with premium gas today in anticipation of the arrival of the X-Calibrator). There was a noticeable performance difference between 87 & 89 tunes. It's not as big as the difference between the 87 & the factory tunes but it is noticeable and I'm going to switch to the 93 octane tune for the ride home and see what difference that makes.
So far I am extremely pleased. The car has come alive. This is the only mod made so far, and it was money well spent.
I ordered the tune from Brenspeed over the phone on Friday. They were extremely knowledgable and willingly answered all of my questions. Service was top notch with the product actually being shipped the same day that it was ordered. So far the product has performed exactly as advertised.
My advice is that if you are thinking about doing this to your car, you won't be sorry.
The Brenspeed X-Calibrator 2 made a world of difference. My 07 Mustang GT performs like a completely different car. The throttle lag is completely gone. I initially programmed the car with the 87 octane tune and was amazed at the difference over the factory computer settings. I drove it for a short time with the 87 tune then reprogrammed it with the 89 octane tune (I had filled the car with premium gas today in anticipation of the arrival of the X-Calibrator). There was a noticeable performance difference between 87 & 89 tunes. It's not as big as the difference between the 87 & the factory tunes but it is noticeable and I'm going to switch to the 93 octane tune for the ride home and see what difference that makes.
So far I am extremely pleased. The car has come alive. This is the only mod made so far, and it was money well spent.
I ordered the tune from Brenspeed over the phone on Friday. They were extremely knowledgable and willingly answered all of my questions. Service was top notch with the product actually being shipped the same day that it was ordered. So far the product has performed exactly as advertised.
My advice is that if you are thinking about doing this to your car, you won't be sorry.