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Old 03-03-2007, 03:44 AM
cool cool is offline
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Join Date: Jan 2007
Posts: 242
Most Bosch plugs are still made in Europe, they still specialize in Cu core and they still manufacture non resistor plugs up to this time. quality may have deteriorated for unknown/ no verification reason/s. All brand that has the same size as bosch can be used, plugs are plugs, their function is to spark and start the combustion, brands are just a psychological and marketing strategy. ask a professional electrical engineer. For langpfeife, as of today the best spark plugs are made in the 3rd world country, brands like NGK & Nippon Denso .
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