NGK 7113-8 Race Plug $ 30.00 SKU: R7113-8 NGK ultra high performance race plug. Back to: Electrical Parts ×Close NGK Spark plugs, glow plugs, plug caps, sensors and semiconductors. http://www.ngkntk.co.jp/english/index.html Description Suit high performance or boosted applications. Suit many high performance import engines. Used by many of the top tuners in Japan. A very hard to obtain spark plug.