I have the MY00 and had the same hesitation problems at launch. According to Trey at Cobb tuning the 2000 year models react differently to the type of gasilone you put in the car vs other years. This is really the case with any car. I was running 87 and switched to 93. The hesitation is gone now that I am using a different grade of gas. I have also got the K&N panel filter and the underdrive pulley and the performance exhaust from Subaru on that car as well. the problems are no longer there. Runs like a champ! Hope this helps!