Many thanks to everyone, very kind welcome.
Afirtmative I´m from monterrey mexico, there are many good cars in the city.
But lets talk about the best one, Pontiac G6!!!!!
I´m planning the following improvments.
1. Magnaflow cat back. Is coming the next week.
2. Cold air intake.
3. New wheels.
But right now i´m having trouble with the egr valve and the O2 sensor. This weekend i´ll clean de egr and change the sensor. You will have news about this.
Soon i´ll post pic of my car. "el palomo"