NGK Iridium Spark Plugs Set of 4 Mitsubishi Lancer Evo 8 (CT9A) Heat Range 7

NGK Iridium Spark Plugs Set of 4 - Mitsubishi Lancer Evo 8 (CT9A) - Heat Range 7

NGK is one of the most trusted names in ignition technology, and their Iridium series plugs are a popular upgrade for turbocharged performance builds. With a higher melting point than platinum, superior anti-fouling characteristics, and lower required voltage, these plugs deliver more consistent ignition across a wider operating range — useful on a modified Mitsubishi Lancer Evolution where charge air temperatures and cylinder pressures are elevated.

This listing covers a set of 4 NGK Iridium spark plugs in Heat Range 7, suited to the Mitsubishi Lancer Evo 8 (CT9A). Heat Range 7 is one step colder than stock, making it appropriate for vehicles running heavier modifications or increased power output above standard.

Important: These plugs do not come pre-gapped. Do not use a slide-type gapper — this will damage the iridium tip. If regapping is required, use a wire-type gapper and proceed with care.

Key Features

• Iridium construction with a higher melting point than platinum for improved durability
• Lower required voltage for more reliable ignition under boost
• Superior anti-fouling and anti-erosion properties
• Improved anti-corrosion via updated metal shell plating
• Heat Range 7 — one step colder than stock, suited to modified or higher-output builds
• Set of 4 plugs — covers a full 4-cylinder fitment
• SKU: BPR7EIX

Vehicle compatibility and fitment notes are provided in the tabs above. Please confirm your vehicle's year, trim level, and configuration before ordering.

Not sure if these plugs suit your build? Contact our team at sales@chicaneaustralia.com.au for expert advice.