The basic requirements for a properly running engine are fuel, air, compression, and spark. Before increasing your engine's power, it's wise to ensure all maintenance is up-to-date and these processes are performing as intended. A weak spark from your ignition system can result in misfiring, rough idling, poor gas mileage, and damage to your catalytic converter, all of which hinder performance.
Fits: Audi RS6/RS7 (C8), VW Golf R/GTI (MK8), VW Golf R/GTI (MK7), Porsche Macan. Confirm fitment with us before ordering.
