NGK IX Iridium Spark Plug Box of 4 (TR7IX)

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.
BUICK LUCERNE 2009-08; CADILLAC DTS 2009-08, STS 2009-06, XLR 2009-06

Fitment:
Cadillac STS V 2006
Cadillac STS V 2007
Cadillac STS V 2008
Cadillac STS V 2009
Cadillac XLR V 2006
Cadillac XLR V 2007
Cadillac XLR V 2008
Cadillac XLR V 2009