ACCEL Dodge Magnum Super-Coils have optimized low-resistance, high-turns-ratio windings, and an M36 high-silicone-magnetic steel E-core for higher energy and more voltage output. Designed as a direct performance replacement for Dodge trucks and Jeeps, these coils generate more power at high rpm and deliver quicker starts, a smoother idle, and crisper throttle response. ACCEL Dodge Magnum Super-Coils are compatible with MOPAR J-TEC computer-controlled ignitions.