Extremely Powerful Magnetic sump plug for Nissans and Toyota's You will be suprised just how much debri this magnet pics up out of your engine. Monitor your engine's health with a Driftworks Magnetic Sump Plug! A very very powerful magnetic sump plug available in M12 x 1.25. This will pick up any excess metal particles in the oil, preventing them from causing further engine wear. We tested the strength of these by hanging a Camber arm off them, weighing 1200grams!!