They are priced right and made well work well good deal.

These bolts are 10.9 so are plenty strong for our purposes. I know some people like to put ARP bolts that are significantly stronger yet but per exhaust experts that I have talked to the ones that are much harder actually do not stretch the way that exhaust bolts need to (otherwise are more inclined to warp manifolds etc) even if it is only a small amount of normal stretch. These bolts are designed to go in hard so that they don't vibrate loose. I put copper anti seize on them all and are doing well. 13 mm socket is what they take. I would buy these again.

Works great, will just have to recheck your torque in a few minutes after the gasket compresses.