I've got a late build 2014 Touring CX-5 (11/13). Earlier builds in 2013 KYB list rear shock part #349219. For mine since it was a late build in 2013 they list part #3440013 as the correct part number. Anyone know what the change is? I was going to buy a set of the #3440013 on Rock Auto and I see they are out of stock.