Problem with Nitto NT555

[smoke90]

I bought those tires last summer. They have less than 1500 miles.
They are far to handle as good as the yokohama even they are in 275 vs 245 for the yoko.
Recently I feel the car pulling left when pulling hard on the engine at speed higher than 60. It become very important at speed higher than 100. At speed higher then 120 it become dangerous.

I brought the car for an alignement and the guys told me it was ok.
I brought it to Mitsubishi Twice.
After the second day they finaly found that the problem is the tires.
If you rotate the tires then the car pull right???

Do you think Nitto will handle this as I bought the tires in July 08

[maxims4g63]

are they balanced properly? what size wheel are they on?