Remove abrasive metal particles from engine oil to ensure longevity. ECS Tuning's Magnetic Plugs are engineered in-house for a perfect fit and feature a permanent magnet fastened to the plug body. The magnet attracts and holds minute abrasive and ferrous metal particles, preventing their circulation through the engine lubrication system. Metal particles can appear in the engine oil system as a result of the following conditions: The constant flaking effect due to normal wear of moving parts Particles not removed by flushing operations after boring or machining Chipping due to sub-surface casting flaws Minute component breakdown caused by stress usage A combination of these factors can account for the presence of metal particles, which can cause excessive wear to vital components unless they are removed. By holding these particles, ECS Tuning's Magnetic Plugs help prevent excessive wear to the internal components of your engine. Relieve worry and prevent excessive wear with ECS Tuning's Magnetic Plugs.