Left front ties stock 225/50/17 on. Changed the rears to these Khumos size 255/45/17.

First thing I really noticed was that my car felt alot more UNstable at high speeds. I dont know why...I might need an alignment but even then it dosen't explain why my car did not pull left or right before.

The good news is that these tires hook VERY NICE. Much better grip off the line and my rear is harder to break loose in a corner.

Overall I am hoping that this problem is one I can solve and not due to the tires. If I can get the car to feel stable at high speeds I will be thrilled with the choice I have made.

By the way.....they have 400 tread and are very cheap!
($139 each)