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I want to use Bosch Spark Plugs, but have modified my engine by adding a performance system. Can I still use the plug listed in the catalog for my vehicle?

April 26, 2017bosch engine modified PERFORMANCE PLUG plugs SPARK system

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I want to use Bosch Spark Plugs, but have modified my engine by adding a performance system. Can I still use the plug listed in the catalog for my vehicle?

1 Answer

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A. If you have modified your engine with a performance system such as a turbocharger, supercharger, or nitrous, the recommended spark plug may not be correct. You may need to use a plug with a colder heat range to compensate for the additional heat generated by the engine. Bosch recommends that in these situations, you consult a qualified engine builder for assistance in determining the appropriate heat range.