A number of us have run tires inside out and not noticed a difference. The GTR tires are non-directional but are assym. Ran the rest of my fronts off on one track day after having researched other comments. Worked fine. Just keep an eye on former outside edge (previously the outside--now inside where you have a little harder time noticing it unless you crank the steering). You will still have wear there on the track. If you are just streeting your car, the standard alignment is for some point between track and street, so if you just drive straight roads, the inside edge will wear, so everything depends on how many straights vs. corners you do.