Designed specifically for the performance enthusiast. Iridium IX S spark plugs offer extreme ignitability, improved throttle response and superior anti-fouling.

• Sold in a set of 4
• 0.6mm fine wire laser welded iridium tip
• Fine Iridium tip ensures high durability and a consistently stable spark
• Iridium alloy has extremely high melting point, perfect for today's high-tech, high-performance engines
• Platinum Ground Electrode
• Trivalent Metal Plating - superior anti-corrosion and anti-seizing properties
• Outstanding acceleration, high fuel efficiency and durability
• Ultimate design, technology and performance.
• Iridium alloy is extremely durable against heat, corrosion, and electrical wear
• Tapered ground electrode to minimize "quenching effect

Select desired heat range when ordering.

STANDARD HEAT RANGE: Standard heat range Plugs are recommended for ALL Street Driven Turbo MINIs with moderate levels of modification.

• 14mm (9/16") Bi-Hex wrenching.  Standard 12 point 14mm deep well socket required
• GAP: Preset at 0.031" (0.8mm)
• Torque to 11-14.5 lb-ft (15-19.5 Nm)
• Use Neverseize or Copperslip on threads
• Only install when the engine is COLD

+1 COLDER HEAT RANGE: +1 Colder plugs are intended for cars with extreme performance engine mods, Stage 3 Manic Tunes, highly modified and sustained high RPM track driving running 100+ octane fuel. Not recommended for street driven cars.  Standard heat range plugs are recommended for all street driven cars.

• 16mm (5/8") Hex wrenching. Standard 6 or 12 point 16mm deep well socket required
• GAP: Preset to 0.024" (0.6mm)
• Torque to 11-14.5 lb-ft (15-19.5 Nm)
• Use Neverseize or Copperslip on threads
• Only install when the engine is COLD

NOTE:  Spark Plugs are not refundable or returnable