Denso Iridium Power IKH24 Uprated Spark Plugs

Denso Iridium Power IKH24 Uprated Spark Plugs are premium, high-performance spark plugs designed not only for the Ford Focus MK2 ST225 & RS, but also for all T5 engine variants on the Volvo P1 platform (covering models such as Volvo C30, S40, V50, and C70 T5). These plugs offer improved combustion and reliability for modified or high-boost engines, making them a superb choice for enthusiasts and serious tuners alike.

Upgrade ignition performance and engine reliability across all Ford Focus MK2 ST225 & RS and Volvo P1 platform T5 engines with the Denso IKH24 Iridium Power Spark Plugs. Featuring a super-fine 0.4mm iridium centre electrode, these genuine Denso plugs ensure enhanced combustion, better throttle response, smoother idle, and quicker cold starts—especially vital for high-output, tuned, and track-use powerplants. Supplied as a boxed set of 5 for the 2.5 5-cylinder turbo application, they fit directly in place of OEM plugs in all UK-market Volvos running the T5 engine on the P1 platform, and are highly recommended for big power upgrades and remapped vehicles.

• Genuine Denso Iridium Power spark plugs, globally recognised for quality
• Suitable for all Volvo P1 platform T5 2.5 turbo engines (inc. C30, S40, V50, C70 T5)
• Direct fit for Ford Focus MK2 ST225 & RS (2.5 5-cylinder Turbo)
• Two steps colder than standard—perfect for high-boost, tuned, and track-focused cars
• Ultra-fine 0.4mm iridium centre electrode for maximum ignition performance
• Lower firing voltage needed for superior reliability under demanding conditions
• Boosts horsepower, torque, and engine response
• Greater protection from detonation and improved fuel efficiency
• Excellent cold start and smoother idle in all weather
• Endurance for over 100,000 km in standard use

Vehicle Compatibility

• Volvo P1 platform T5 engines:

• • Volvo C30 T5

  • Volvo S40 T5

  • Volvo V50 T5

  • Volvo C70 T5

• Ford Focus MK2 ST225 (2.5 5-cylinder Turbo)

• Ford Focus MK2 RS (2.5 5-cylinder Turbo)