Bought these years ago for nearly double the sale price. Cant beat a great set of cast iron manifolds. They will outlast any stainless ones for sure. They also helped achieve just over 500whp with the extra airflow with lightly larger than stock turbos. Only issue I had was the hardware. I ended up using most of the factory studs. The nuts that came with the set when I got mine felt like aluminum and stripped out fairly easy. Mayne they have been upgraded since then. Either way, great part.

Quality isn’t good but what else can you expect from AMS casting isn’t that good my set has a chunk missing from one of the exhaust sides that bolt to the head don’t really have many options though it’s what’s available also hardware is trash and gaskets as well feel cheap hopefully I don’t have any issue when I install them