Spark Plugs

Spark plugs are a wear item. They degrade with use and that can lead to lowered performance, hard starting, and reduced fuel economy.

Engines that have been converted to forced induction can benefit from a spark plug with cooler heat ranges than stock to reduce the knock potential.

URD stocks high quality Denso brand spark plugs.  Where possible URD recommends using the Denso Iridium spark plugs for maximum performance, exceptionally long life, and top fuel economy.