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Bosch spark plugs deliver the consistent, reliable spark your engine needs to churn out the power your driving demands. When you add Bosch spark plugs to your ignition system, you’re adding the very latest spark plug technology to your automotive arsenal. Bosch spark plugs are engineered specifically to improve your engine performance in virtually all driving applications, from quality OE-replacement spark plugs to high performance spark plugs. Summit Racing’s selection of in-stock Bosch spark plugs include OE Iridium and OE Platinum spark plugs, Platinum Plus and Super Plus spark plugs, Platinum IR Fusion, Silver Spark, Platinum2, and many other Bosch spark plugs.