$20 each these are 6061 aluminum
The factory plate may or MAY not have sealed when the oil filter stud was screwed in. Also the stock spring that allows the dirty oil in the engine if the oil filter plugs gets weak over time and you may be letting dirty oil in your engine, this plate eliminates the stock spring, composite plug and stock retention adaptor, In addition to plugging this bypass (which is now cast in by crown timing covers) it also maintains a tight seal when properly torqued.
orderbulltear@yahoo.com for ordering info

