Ok i bought tires from TD4Less for my acura tsx i got it around april installed it on august.. Got an alignment cuz it was shifting to the right... then still did it so got another alignment at a different city and results are right on target still shifting.. brought it to the dealer and they rotated the front left to right and right to left and now its shifting to the left... Dealer mechanic says its a defect on tire.. everything else is fine and alignment is on target.. Can someone help me on this.. its Brand new TIRES toyo versado lx 215/50/17 95v

 

Study Tire engineering and manufacturing terms such as self aligning torque. conicity and thrust.
Common for tire internal construction to shift to create an offset which creates a self steering force.

http://en.wikipedia.org/wiki/Tire_Uniformity

When one desires perfection Michelin is as close as it gets.

 

Radial pull.... if its just a light pull, its common, if its a dramatic lane changing pull, then you need a better alignment.