I am looking at some 275/55/20 pirelli scorpion tires. will these fit the stock 20's??? I am looking for some good winter tires and these seem to be a good price.

 

Those will be the same width but shorter. 275 is the width in millimeters and 55 is the sidewall height relative to the width. The sidewall height on this tire is 55% of the width.

I think that is the way it goes, but I could be wrong. Google a tire size conversion chart.

-Chris

 

What he said... your speedo will be off a little, but your dealership can reprogram it for a nominal (in my case 35 dollars) fee.