Spark Plug, NGK - E82 135i, E9X 335i, E60 535i, E89 Z4 35i (N54)

NGK Laser Iridium spark plug upgrade for N54

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Price:
$14.99

  • Irridium electrodes for high performance
  • -1 colder heat range for better knock resistance and misfires
  • Iridium tip electrodes are tougher than stock Nickel-Copper
This NGK spark plug is an upgrade for N54 engines running higher boost. The colder heat range will lower combustion chamber temperatures and resist knocking and eliminate misfires. The stock plugs produce too much heat with higher boost levels and misfires and knocking (pre-detonation) occur. This NGK N54 plug is one step colder on the heat range scale. It's also a stronger iridium-tipped plug instead of the stock Nickel-Copper for more consistent performance under high boost.

These plugs must be gapped to precisely 0.022" (0.56mm) using a spark plug gap tool!

The replacement interval with these plugs is about half the OEM Bosch plug. These plugs will need to be changed every 15-20,000 miles.

Just like ignition coils, spark plugs are key to the performance and efficiency of your BMW engine. A bad plug(s) will harm performance and fuel mileage and affect drivability and engine smoothness. Unburnt fuel in the exhaust will shorten the lifespan of oxygen sensors and catalytic converters.

Video: Replacing Spark Plugs on E9X 335 (Courtesy of SeanS54):


BMW Fitments:

1 Series
E82 / E88 (08-13) > 135i
E82 / E88 (08-13) > 135is
E82 / E88 (08-13) > 1M (11-12)
3 Series
E90 / E91 / E92 / E93 (06-13) > 335i
E90 / E91 / E92 / E93 (06-13) > 335is
E90 / E91 / E92 / E93 (06-13) > 335xi
5 Series
E60 / E61 (04-10) > 535i
E60 / E61 (04-10) > 535xi
7 Series
F01 / F02 (2009+) > 740Li
F01 / F02 (2009+) > 740i
X6 Series
E71 X6 (08-14) > X6 xDrive35i
Z Series
E89 Z4 (2009-2016) > Z4 sDrive35i
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