NGK BKR Spark Plug

NGK BKR series resistor spark plug - sold individually. Choose heat range to suit your build: 6 (standard), 7 (one step colder for mild boost), 8 (colder for high boost / high power), 9 Iridium IX (BKR9EIX - coldest, for high boost race builds).

Suits: Toyota 1JZ / 2JZ, Nissan SR20DET and RB series.