C6 Corvette LS2 LS3 LS7 Magnetic Oil Drain Plug NEO Magnet Fits: All 05 through 13 Corvettes Designed to Fit All C6 05 through 13 Corvettes. Uses Neodymium (NEO) Magnet: Which is the Strongest Permanent Magnet Made. 5X Stronger then GM's Magnetic Drain Plug. Cheap added Engine Protection. Drain Plug size: Pilot Point M12-1.75, Head Size 13mm.