Thin, scuffed plastic hangs below the engine bay, and its modesty is precisely the point. An engine splash shield is no armored plate; it is a sacrificial boundary between the road and wiring, belts, pulleys, sensors, and the lower face of the powertrain. Its job is unglamorous, yet far from trivial.Dismissal is expensive. Water driven upward by tires can reach electrical connectors, while grit th...More