Zipty Racing has yet another way to help keep your oil clean buy utilizing a magnetic oil fill plug, crank plug and timing plug to collect extra dirt in your oil. Fits YZF450, WR450F and WR250F. These plugs are made out of billet aluminum and are anodized red for that factory look. They each have Zipty's extra strong magnetics installed with circlips to retain them. The cleaner your oil is the longer your engine will last.