Cat charges between $40 to $45 for the entire kit. Oil as YOU PROBABLY know is not that cheap these days so I don't think the kit is out of line considering everything that comes with it!!!!
51359 is the WIX number for the z1 touring, should be the same on the turbo? I bought the oil change kit, it had the filter, a gallon of oil, belly pan plugs and a funnel.