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This listing is for Dinan Iridium Spark Plug Heat Range 9 (SINGLE) Fits BMW B48 B58 S58 D640-0001

Part Number D640-0001

Founded in 1979, Dinan is North America's premier BMW tuner and one of the most respected names in European performance. Every Dinan product is developed and validated in-house to a "performance without sacrifice" standard — meaningful power and handling gains that don't cost you drivability, refinement or reliability. The catalogue covers ECU and TCU tuning, suspension and springs, big brake kits, exhaust systems, cold air intakes, turbocharger upgrades and wheels, originally for BMW and now extending to MINI, Mercedes-Benz, Toyota and Tesla. Dinan parts are sold through a worldwide network of authorised performance centres, including BMW dealerships.

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.

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