The NGK Iridium spark plugs (BKR5EIX-11) are an excellent upgrade over the stock plugs. Designed specifically for the performance enthusiast, these Iridium spark plugs offer superior performance, improved throttle response and superior anti-fouling. The design of the ultra-fine electrode is designed to ensure maximum durability while offering accurate and consistent spark - offering better starts, superior acceleration, and optimum fuel economy.
NGK Iridium spark plugs offer the latest technology in spark plug design and performance. Iridium is significantly stronger than any metal used in traditional replacement spark plugs, and over 6 times stronger harder than even a platinum plug! This has allowed NGK's engineers to design an ultra-fine center electrode thereby reducing the voltage requirement for spark.
Mazda Miata Spark Plugs:
1994-2005 1.8L All - Non-turbo
Mazda Protege & Protege5 Spark Plugs:
2001-03 (2.OL NON-TURBO - including Protege 5)
1995-99 (1.5L, 1.8L)