*IR #2131-K303 and 2135-K303 are the same exact parts and are interchangeable. 2 different air inlet kits are the same parts.
The shipping weight is 4 ounces with an eBay USPS.com Ground Advantage shipping label. Ground Advantage is the slowest and cheapest shipping method offered on eBay. International shipping is done by shipping to Glendale Heights, Illinois with the eBay Global Shipping Program finishing the delivery of this item.