BMW N54 OEM Spark Plugs - BMW 135i, 335i, 535i, Z4 – BMWSparkPlugs
Changed N55 spark plugs - BMW 1 Series Coupe Forum / 1 Series Convertible Forum (1M / tii / 135i / 128i / Coupe / Cabrio / Hatchback) (BMW E82 E88 128i 130i 135i)
BMW NGK 97506 Spark Plug For N55, S55, N63 And S63 Engines
Spark Plug - BMW Part #12120037582
Fit 4X Platinum Spark Plugs OEM 12120040551 For BMW Mini Cooper 430i 530i 2.0L – ASA College: Florida
Spark Plug Options for N55 Engine - BMW 3-Series and 4-Series Forum (F30 / F32) | F30POST
Ignition Service Package for BMW N55 6-cyl Turbocharged Engines
NGK Spark Plug - 2 Step Colder For N54/N55 – Black Forest Industries
2013 335i N55 Spark Plug Change - BMW 3-Series and 4-Series Forum (F30 / F32) | F30POST
N55 Ignition Kit
BMW N55 3.0L Coil Packs And Spark Plug Kit 335i High Quality Bosch - 12138616153 | eBay
Changed N55 spark plugs - BMW 1 Series Coupe Forum / 1 Series Convertible Forum (1M / tii / 135i / 128i / Coupe / Cabrio / Hatchback) (BMW E82 E88 128i 130i 135i)
Precision Racewerks N54 / N55 PLUG AND PLAY IGNITION Kit - n54Tuning.com
NGK 97506 Pre-Gapped Spark Plug Set For BMW N54, N55, S55 - RKTunes
BMW Schwaben 14mm Swivel Spark Plug Socket for N54/N55/N63/S65 PEL 026717SCH01A PEL026717SCH01A PEL.026717SCH01A | Pelican Parts
How To Replace Spark Plugs On A BMW N55 Engine (X5, X3, 335i, & More)
BMW E9x 335i N55 Spark Plug DIY - YouTube
Official N54/N55 spark plug fitment thread - BMW 3-Series (E90 E92) Forum