Dinan Iridium Spark Plugs are an excellent upgrade for tuned, and even stock engines. Our spark plugs are made from Iridium - one of the strongest materials available. They last longer than other materials with higher melting points, run cooler, resist preignition, and even require less voltage to produce a strong spark. The iridium electrode with its copper core is harder and stronger than other materials, can dissipate heat more easily, and is better protected from melting, cracking, and other limitations found with standard plugs.
B48 TU B58 TU1 (Gen 2 B48 Gen 3 B58)
- 152% higher melting point than silver, 125% higher than copper, and 38% higher than platinum
- Acceptable for high performance / tuned and stock vehicle applications alike
- Optimized electrode design for hard to ignite fuels, such as ethanol
- Cooler operating temperature than stock plugs
- Resists preignition better than stock plugs
- Heat range 12 spark plug (Similar: NGK 8)
- Stronger than copper and platinum
- Lower required supplied voltage
- Insulator Material: Ceramic
- Projected insulator design
- Install Torque: 15 + 25 Nm
- Thread diameter: 12mm
- Thread reach: 26.5mm
- Hexagon: 14mm Bi-Hex
- Supplied Gap: 0.5mm
- Terminal Type: Cup
- Seat Type: Flat
- Made in the EU
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| Air Freight Prohibited: false |
| Not Carb Approved: false |
| Carb Acknowledgement Required: false |
| Ltl Freight Required: false |
| Prop 65: Unknown |
| Part Type: automotive |
| Epa: N/A |
| Regular Stock: true |
| Units Per Sku: 1 |
