Can a Bosch spark plug be pre gapped?

Can a Bosch spark plug be pre gapped?

Note: Bosch OE Fine Wire Series Spark Plugs (Double Iridium, Double Platinum and Platinum) are pre-gapped. Adjustment of gap could cause damage to the center electrode. 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?

What do the numbers mean on a Bosch spark plug?

A plug with a low heat range number (e.g., 2-4) indicates a cold plug that quickly dissipates heat to the engine block and cooling system, while a high code (e.g., 7-10) indicates a hot plug that retains heat. The Bosch Spark Plug catalog shows the part with the correct heat range and fitment for each vehicle.

How does Bosch find the hottest spark plug?

Using a special spark plug with a built-in thermocouple, Bosch engineers find the hottest cylinder in an engine and then test various spark plugs in that cylinder until the ideal plug is found. This ensures that you will always get the best performance possible. What is heat range?

What kind of spark plug is Bosch double iridium?

Bosch Double Iridium Pin-To-Pin Spark Plugs represent advanced OE spark plug technology and are manufactured to be OE equivalent in fit, form and function. The ultra-fine wire design firing pin and ground electrode pin provide higher performance.