I had one of the first sets years back. Broke of them during the initial torque @90? Then broke another after they overnighted me one @ 110 . They just didn't feel very reliable, very inconsistent. Sent them back to ARP as per Greg's recommendation and basically got called a liar by the tech. He first stated "These aren't even our studs we gotta send them to the lab". Then we talk again and he says "Well these are our studs but it looks like these are just a bunch of studs that you threw together. Six of them are even longer than the rest." So when I got them back I realized that the six? were the ones that are supposed to go on the exhaust side. They're supposed to be longer...DUH!!! ARP didn't even realize that. That tells you how good their tech's are. But when I was pulling on the H-11's to 140 they were real consistent and just felt stronger/more reliable. JMHO.