Thanks Steve for confirming that OEM washers work with the magnetic plug. I'll consider using it on my next oil change. I could see why people hand tighten the magnetic plug especially at 19 ft-lbs. I do the same with the oil filter housing. But at 37 ft-lbs with the factory drain plug I will use the torque wrench. I know others that just hand tighten it like you guys; mag plug or factory.
Crush washers have to be the cheapest Porsche item you can buy. It's a filler item on Pelican Parts for free shipping. Order 50-100 pieces and you're set for the lifetime of your Boxster ownership
. It sounds like you guys will forget the new o ring in the oil filter if it didn't come with it already.