I have a 06 wrx with no mods with 58,000 miles on it. This morning was driving and had a sudden spike in rpms and no power. I thought it might be a clutch but I have now slipping through out my gears. I was just on a windy back road a cruising in third and getting ready to go into fourth when it happened. Then i could not get it to repeat the problem. Anyone see this or something similar.