These coils feature advanced bobbin technology, highly specialized silicone magnetic steel cores, along with optimized winding, resistance and turns ratios to delivery 10-15% more energy than the OEM coils. Specialized high temperature epoxy resists shock and vibration, while increasing thermal conductivity. They feature bodies, brackets and towers molded in ACCEL yellow and feature brass secondary contacts.Be sure to check your stock coils on your truck or van to make sure they physically match the new Super coils. GM offered several styles of LS1 coils that are not all compatible with each other.
