I have a 03 legacy L. Bought a couple months ago, certified pre owned from a subie dealer. Just had the 60k service done on it, all service records and everything was done according to the service schedule if not sooner. Happened a total of 4 times since I've bought the car, in 2nd or 3rd gear (MT) after the clutch it released, I will give it gas and the car will start violently bucking and I have to push in the clutch and release it to stop the bucking. Other times (happens more often than the bucking) in the same scenario clutch is out, I gas it and it hesitates like the rpm needle will bounce up/down then it goes or is slow to react. I've changed the oil every 3k miles if not less using Mobil 1 full synthetic, tranny/diff oil was changed 100 miles before I purchased it, there are no CELs etc and these symptoms are random and don't occur every time. I've taken it to 2 different subaru dealers a total of 4 times now, every single time they take it for a drive and can't reproduce the issue and say there is nothing wrong with the car. The current dealer that has my car now has had it for 2 days and has been driving it saying they can not reproduce the issue and there is nothing more they can do. I have the SAS which expires March of 08, any other ideas of what I can ask them to do or ask them to check that would potentially help in diagnosing this issue?