These are faithful reproductions of an original set of after market OEM racing manifolds from Matchless. They have the original part numbers, right and left. The item "Matchless G12 CSR Racing Manifolds" is in sale since Monday, February 11, 2019. This item is in the category "eBay Motors\Parts & Accessories\Motorcycle Parts\Body & Frame\Gas Tanks". The seller is "cafescuderia" and is located in Shawnee, Kansas.This item can be shipped worldwide.