Everything that came with the manifold kit was great, except the manifold itself. The casting was very rough both inside and outside. The milled surface that mates to the head was also very rough. The actual inside of the manifolds ports were not only VERY rough, but they were smaller in diameter than the factory manifold. That's a great way to kill power and MPGs. This is not an example of the OEM quality that Dorman has been known for.