http://www.maperformance.com/map-hig...11mmalloy.html

I recently ordered these from MAperformance as they recommended them to me for my build. I always go to MAperformance for all my parts and questions... and well they are always very helpful and the products they make are just down right awesome. I installed these myself and it was a breeze. I like the fact that they made them so that you don't have to take the time to retorque them after a certain amount of mileage of having them installed. I have had them on for about a month now and get tuned with them and they help up great. I would for sure recommend these to anyone that is planning on upgrading headstud's for more booost!!! Thanks to Adam for being very patient with me and answering each question I have and also the rest of the MAperformance crew for helping out. Thanks guys

those look very nice. didn't know they had them.

Thanks for the kind words sir!