Good day, here is a set of Sierra aftermarket Mercruiser 4.3L v6 Vortec Exhaust Manifolds & Risers that were originally purchased for over $600 dollars for $300 dollars. They are in excellent shape & were only used to test the engine outside of the boat & have never seen a lake. If you have any questions about the manifolds or if you would like to come & see them then email me & I will get back to you at my earliest convenience. I SHIP PARTS CANADA WIDE