Subaru WRX 2004-2005, Hyperformance™ Spark Plug by ZEX®. 14mm Thread; 3/4 in. Reach; Gasket Seat Design; For Engines Using Nitrous/Turbos/Blowers.
- Igniter Core. Pure Copper And High-Quality Nickel
- Clean Fire. Spark Energy Cleans Center Electrode
- Durable. Helps To Reach Max. Ignition Energy
Being a member of COMP Performance Group, ZEX develops and manufactures premium bolt-on nitrous systems that deliver optimized performance and extremely easy installation. Founded in 1998 in Memphis, Tennessee, ZEX is the company that strives to integrate advanced engineering technologies to be able to offer perfect nitrous solution for any application. The brand’s custom-fit nitrous systems feature an exclusive Active Fuel Control technology that allows for safer and more efficient nitrous injection, thus providing increased horsepower without any sacrifice to the engine's safety. In addition to high quality nitrous systems, the brand also manufactures a variety of nitrous accessories, spark plugs and more.