Using epoxy vacuum techniques decreases the presence of air bubbles in the epoxy, leading to improved insulation and lower risk of energy punch-through failures.
Delphi's ignition coils are engineered to Original Equipment specifications
Delphi's coils are designed and endurance tested to resist the common stresses that cause failure
Delphi's ignition coils are designed with proven materials, such as high quality wires and wire coating that resists the cracks, pin holes and imperfections that most often lead to failure issues
Delphi uses winding process techniques to control the length of wire between adjacent windings. That’s important because more length results in greater voltage differences, which in turn create more pressure that could break down the insulation and wire coating.