Karlyn/STI distributes a comprehensive line of high quality Import & Domestic Ignition Coil-on-Plug (COP) components. Our engineers work closely with our suppliers to monitor and optimize the performance of our Ignition coils. We also utilize independent engineers for diagnostic testing to maintain the integrity of our coils, plus we utilize Bremi/Germany windings. Coil features; 1) Consistent high voltage output for optimum performance. 2) State of the art epoxy injecting procedure which eliminates air pockets and prevents thermal breakdown while also exhibiting high dielectric properties. 3) Expertly wound coils on durable bobbins for long and consistent service life.