NGK Iridium Spark Plug Box of 4 (BKR6EIX)

NGK Iridium IX spark plugs are specifically designed for the performance enthusiast. Iridium IX provides outstanding acceleration, high fuel efficiency and durability. NGK Iridium IX plugs offer extreme ignitability and exceptional anti-fouling. Tapered cut ground electrode provides improved starting, idling and throttle response. The Iridium fine wire center electrode's durability is six times harder than platinum. Iridium alloy's extremely high melting point is perfect for today's engines. For even greater performance consider upgrading to an NGK Ruthenium HX plug.This Part Fits: Year Make Model Submodel 1994-1995 Alfa Romeo 164 LS 1994-1995 Alfa Romeo 164 Quadrifoglio 1991-1993 Alfa Romeo 164 Sport 1987 Audi 5000 CS 1986-1988 Audi 5000 Quattro CS 1990-1991 Audi 90 Quattro 20v 1996-2005 Audi A4 Base 2003-2006 Audi A4 Cabriolet 1998-2005 Audi A4 Quattro Avant 1996-2005 Audi A4 Quattro Base 1995-1997 Audi A6 Avant 1995-2001 Audi A6 Base 1995-1996,1998-2001 Au