NGK Iridium Spark Plug *Box of 4* (LFR7AIX) - 2309

**SOLD AS SET OF 4** 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.  NGK Iridium IX spark plugs are specifically designed for the performance enthusiast. Iridium IX provides outstanding acceleration, high fuel efficiency and durability. O/B - 2006-2001 MERCURY, 2005-2000 YAMAHA (COLDER HEAT RANGE THAN OE), PWC- 2014 YAMAHA Fitment: 2006:Mitsubishi:Lancer:Evolution 2006:Mitsubishi:Lancer:Evolution MR 2006:Mitsubishi:Lancer:Evolution RS 2006:Mitsubishi:Lancer:Evolution S