N54 to B58 Coil Pack Conversion Kit (Coils Not Included)

Run B58 Coils on Your N54

Misfires under boost? Tired of replacing coil packs every few thousand miles? This conversion kit lets you run BMW's newer B58 ignition coils on your N54, a popular upgrade for tuned cars that need a stronger, more consistent spark.

Please note: B58 coil packs are NOT included. You'll need to supply your own set of six B58 coils.

Choose your option

• Full Kit (black/red): Everything you need. Mounting bracket with hardware, 6x plug-in adapter harnesses, 6x spring extensions and 6x coil boots.
• Adapter Harnesses Only: 6x plug-in harnesses, for builds that already have a bracket.
• Bracket Only: The mounting bracket with hardware, for builds that already have harnesses.

Why make the switch

• Stronger spark: B58 coils help fight boost-related misfires on tuned and high-boost builds.
• Built for tuned cars: A go-to upgrade for N54 owners running tunes, upgraded turbos or ethanol blends.
• Plug-in harnesses: Connect to your factory connectors, no cutting or splicing.
• Clean, secure fit: The bracket holds all six coils firmly in place.

Fitment

Designed for BMW models with the N54 twin-turbo engine, including the 1M, 135i, 335i, 535i, X6 and Z4. Not sure it fits your car? Contact us with your model and year before ordering.

Pro tip: Install fresh, correctly gapped spark plugs at the same time for best results.