Now only available for the large timing cover. for the discounted price above F2's Magnetic Timing Plugs trap metal particles and save your motor and transmission from harm. With internal magnets, they pick up the chunks that result from starter gear wear and engine break in. With an 8mm allen head they are easier to remove than the screwdriver type OEM parts. This can be done after every ride or race without needing to change the oil like with a magnetic drain plug.