APR MS100192 Direct Ignition Coil

APR Ignition Coils are designed to be a direct plug-and-play upgrade to factory coils, & provide greater energy output, ensuring a stronger & more consistent spark. The commonplace replacement of factory ignition coils w/those taken from higher output Audi RS models, such as the 2.5T, is popularly believed to provide greater energy output. However, testing proves that they are no more powerful than the factory coils that are found on 1.8T & 2.0T engines. APR Ignition Coils increase energy output by 14%. They are a direct upgrade or replacement, & come w/the coveted red housing made popular by the Audi R8.\nHow does APR improve the factory ignition coils?\nWe prioritize performance. Our ignition coils are engineered to maximize efficiency by increasing the diameter of the copper windings, reducing resistance while maintaining the necessary turns to sustain optimal voltage levels. We enhance the size & strength of the neodymium magnets—all within the physical constraints of the coil’s design. Additionally we upgrade the silicon steel shield which aids in less energy loss w/improve flux flow on pencil style coils. Voltage regulation is meticulously controlled through a series of Zener diodes, allowing for precise management of resistance & primary inductance. Primary inductance is crucial as it determines the amount of charge the coil can store before firing, yet it must be balanced to ensure proper functionality across the full operating RPM range. This engineering approach results in an ignition coil w/increased energy output, delivering a more powerful spark that promotes a cleaner & more complete fuel burn.\nWhy don't the factory coils have these upgrades?\nAutomobile manufacturers constantly navigate the trade-off between cost efficiency & performance in every component of a vehicle. Ignition coils are no exception, w/millions produced annually. Even the smallest cost reductions can significantly impact overall expenses. Typically, manufacturers lower costs by using smaller, less powerful neodymium magnets, thinner copper windings, & reduced shielding material.\nHow are APR Ignition Coils tested?\nTo ensure each batch of ignition coils meets our rigorous quality standards, we conduct thorough testing on randomly selected samples. The coils undergo testing on our specialized testing stand for 73 hours constituting over 15,768,000 coil firings. All tests are run in an open circuit setup to ensure energy travels through the coil to expose any weakness in the windings & potting material, which would cause the coil to short & overheat. Only after successfully passing our stringent tests are the coil batches approved for sale.