ECS Tuning introduces magnetic drain plugs for your BMW. Featuring a permanently mounted magnet that traps ferrous metal suspended in you oil. These magnetic drain plugs trap tiny particles are unable to be caught by your oil filter, leaving you with a cleaner engine, and over time saving your bearings and oil pump from unneeded wear. Manufactured of 7075-T6 aluminum, the ECS Tuning M12 magnetic drain plug is 80% stronger than the weaker (and much more common) 6061 aluminum. ECS magnetic drain plugs also capture many metal particles from wearing or recently rebuilt engines. The constant flaking effect of normal wear of reciprocating parts. Material missed after boring or machining. Small component breakdown caused by high RPM break-in. Torque to 18ft-lbs using a 17mm socket, just like your stock drain plug.