This Arctic Cat ZR 900 twin cylinder with the casting number 88J2 is re-plated to stock specs with a lifetime plating warranty by the plating company. It may have some porosity visible in the plating, but it doesn't affect performance or longevity. A core charge of $100 has been included in the purchase price of this cylinder. We will send a core refund once we receive your eligible core cylinder. Broken skirts or significant casting damage (such as cracks into the water jacket) may not be eligible for core refund. We do not accept core cylinders that have been sleeved (iron liners installed). Please contact us if you have any questions about your cylinder or if your casting number does not match this cylinder. Shipping is only in the lower 48; unless you are purchasing through eBay's Global Shipping Program. If you are in Alaska please contact me before purchasing to check on shipping options. Thanks, -Paul