Set of (6)
OEM BMW N55 Spark Plugs by Bosch (ZR5TPP33S)
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OEM N55 High-Performance Spark Plugs
- Sold as a set of 6
- Copper core and platinum electrodes for longer mile replacement
- Mild heat range for OEM and tuned/modified N55's running a variety of fuels
- OEM plug for the N55 engine
These spark plugs are recommended (by BMW) to be replaced every 60,000 miles on stock vehicles. N55's that are tuned or modified will likely need to replace these every 20,000-40,000 depending on how much horsepower you are running.
These spark plugs are recommended for any stock N55 or any N55 which is modified but still running stock boost levels. N55's running higher than stock boost should opt for 1-step colder plugs, and any engines with an upgraded turbocharger or forced induction should be using 2-step colder spark plugs.