Porsche 996 986 Spark Plug set ( 6 ) NGK BKR6EKUB (7969) Spark Plugs, set of six, NGK BKR6EKUB. part# (999 170 207 91). Fits: (2000-2004): Boxster Fits: (2000-2004): Boxster s Fits: (1999-2001): 911 Carrera (not for 'S' or Turbo) Fits: (1999-2001): 911 Carrera 4 (not for 'S' or Turbo)