NGK Iridium IX Spark Plugs (BKR7EIX x 4). BKR7EIX is one step "colder" than BKR6EIX and Gap is. 03" (0.8mm). Subaru: EJ20 / EJ25 / EJ20T / EJ253. Colder Plug for Models Listed. Colder Heat Range 7 Spark Plugs. Set of 4.
4 x NGK Iridium IX Spark Plugs BKR7EIX11 Colder Heat Range 7 Honda Acura Toyo ++
4 x NGK Iridium IX Spark Plugs BKR8EIX Colder Heat Range 8 for Race Tuned Modifi
4 x NGK Iridium IX Spark Plugs BKR7EIX Colder Heat Range 7 B16/B18/SR20/EJ25/FE
6 x NGK Iridium IX Spark Plugs BKR7EIX Colder Heat Range 7> Modified/Turbo/Tuned
