I've had a bunch of question regarding the sandwich plate, here are a couple of links if you want to replace the standard stillen one:
There is a mocal one
http://www.racerpartswholesale.com/p...Plates#reviews
There are lower priced ones on Amazon, just make sure you get a 20mm one.
https://www.amazon.com/gp/aw/s/ref=i...stat+oil+plate
-NT