[Gabriel]

I have purchased this year a Diablosport ECU programmer for Focus SVT , I have installed the performance program and everything seems ok . I feel more low end torque and the fuel consumption went up a little .I plan on going to the track next sunday and then , to a dyno on May 23rd . Now , I have three questions :

1. Has anybody installed this program on their cars before , what do you think about it , any suggestions and/or advice ?

2. The manufacturer recommends dyno and air/fuel mix check after installing the performance program ? Would it be safe to go on track before checking the A/F mix ? Judging by the color of the spark plugs , the mix doesn't look too lean

3. If I do the dyno and the A/F adjustment and then later I want to go back to the factory program for an E-test let's say , will the programmer remember the performance program along with the A/F mod , or that will have to be done all over again after going back to the performance program ?
Any feedback will be greatly appreciated .
Thank you