I had one of these OBX diffs when they first came out. It was on my turboed acura integra. It worked good. I took out the bolts and restacked the washers they had put in incorectly. Put the bolts back in with locktite and it was good to go. Another issue that may have been fixed by now was that the hole that the driveshaft went into was not chamfered on the inside. so it was easy to put shaft in but would not come back out without damage to the driveshaft. This was because the spring clips at the end off the shaft got caught on the non chamfered end. I may get these for my sportage front and rear. A lot off things to check before using it but it never broke once it was in. It's in my brothers car now. Just for reference I was pushing 30+ lbs of boost with a 1.8L 4cyl. on street tires. Not sure how much pressure that puts on the OBX.