Not too long after I got the car back from Exotic Muscle..i say about 600 miles after the engine work, me and a friend with his 996 TT porsche race on I-5 to L.A at 12 am on a long strech about 2 miles. We got up to 155+ it was kinda scary and stupid, but it was only a brief run there was no car on the highway at that hour. We both stayed at that speed for only 15 second or so then backed off. It was really fun.