Bosch Motorsports spark plugs feature fused iridium and platinum center electrode for longer lasting, more consistent performance in even the most extreme engine conditions. Higher horsepower engines create considerable increases to combustion chamber temperature which increases thermal corrosion as well as accelerated wear which can result in engine misfire and reduced performance.
With its yttrium-enhanced ground electrode and reduced interference to flame front propagation this spark plugs is on the must have list for any engine developing higher than stock levels horsepower.
Bosch motorports spark plugs put less stress on the ignition system for quicker starts, more efficient fuel combustion, and a longer performance life. In addition, voltage requirement increases less over time versus other iridium plugs for longer reliable performance of the vehicle's ignition system. Two steps colder than OE plugs for increased resistance to overheating and melt down.
Sold as single unit.
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