BOSCH SUPER Copper core center electrode in heavy-duty nickel alloy jacket for greater ignition energy reserve. A heavy-duty nickel chromium side electrode assures maximum performance and prolonged service life.
BOSCH PLATINUM 99.9% Platinum center electrode gives lower ignition voltage. Electrode gap remains virtually unchanged throughout its service life. All this gives you better performance and easier starting. Platinum plugs withstand temperatures up to 3200F and are especially recommended for Turbo engines.