Bosch Platinum4 Spark Plugs deliver smoother acceleration top fuel economy and ultimate engine performance. Bosch guarantees you will feel improved performance in your vehicle when using any of Bosch OE Fine Wire Spark Plugs Double Iridium Double Iridium Pin-to. If you want to restore your engines performance Bosch spark plugs are external parts of engine systems that will put you back in power and AutoZone. The spark plugs main task is to generate the spark to ignite the compressed air-fuel mixture inside the combustion chamber. The ultra-fine wire design and laser welded tapered ground electrode deliver optimum performance while the iridium center electrode and ground electrode..
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