We sell stainless,regular steel, & used. If your looking for used engine set $45 a set. Not on our site as used but we do have new on there.
I also have new GM units here but doubt you would want to spend the $ on them.
Used units are nice. before they came out with new we would lightly scuff & shoot them with clear to look new. I have about 10 good sets of used in stock. Just give us a call if you want used units. No kinks or flat spots. They will need to be cleaned to look new.