APR Iridium Pro Spark Plugs (4pcs)

APR Iridium Pro Spark Plugs are a great upgrade for engines that have been tuned for more power. These spark plugs are made from Iridium, which is one of the strongest materials used in this kind of application. They run cooler, are less likely to overheat before the engine fires, last longer than other materials with higher melting points, and don’t need as much voltage to create a strong spark. The electrode is harder and stronger than other materials, and because it has a copper core, it can spread heat more easily, which helps protect it from melting, cracking, and other issues that happen with regular spark plugs. These plugs are made for use in vehicles that have been tuned or have higher engine output, and they work best in engines that run hotter because they stay cooler than the standard spark plugs. They are especially good for engines with a lot of boost, high cylinder pressure, high temperatures, and when the engine is producing a lot of power. They also work well with APR ignition coils when they are used.

Features:
- Heat range: 9 (Similar to: Bosch 3, Brisk 10, Denso 27, and NGK 9)
- Melting point is 152% higher than silver, 125% higher than copper, and 38% higher than platinum
- Stronger than copper and platinum
- Designed for high performance and tuned vehicle use
- Features a projected insulator design
- Requires less supplied voltage
- Operates at a cooler temperature than standard plugs
- Has an optimized electrode design for fuels that are harder to ignite, like ethanol
- Resists preignition better than regular plugs
- Ideal for APR upgraded vehicles
- A great match with APR ignition coils when used
- Thread reach: 19mm
- Thread diameter: 14mm
- Hexagon size: 16mm
- Seat type: Gasket
- Installation torque: 25 Nm
- Made in the EU