My buddy selling 2 sets Stainless marine risers. They are about 8 1/4 high and about 27 1/2 long from center of manifold to the back. New cost $3800.00 or so,but he is asking $1500 for both sets/offer?. He needs a STD one set for his application if anyone has one. Has one tiny dimple thats hard to see on one pipe. Fresh water . Give email for pics.