Upgrade your engine’s performance with the Denso 5735 Iridium Racing spark plug. Designed for high-performance and racing applications, this plug features a fine iridium center electrode that delivers a stronger, more consistent spark for improved combustion. That means better throttle response, increased fuel efficiency, and smoother acceleration. Iridium is also extremely durable, so these plugs last longer than standard copper or platinum plugs. Whether you’re tuning a sports car, motorcycle, or any high-revving engine, the Denso 5735 is a trusted choice among enthusiasts and mechanics. Swap out your old plugs and feel the difference in power and reliability. Perfect for track days, street performance, or anyone who wants the best ignition possible.
