Midnight Motorsport - B58 Coil Conversion Kit || (N54,N55,S55)

Midnight Motorsports Complete B58 Coil Conversion Kit

For N54, N55-E, N55-F, and S55 Engines

Upgrade your ignition system with the Midnight Motorsports B58 Coil Conversion Kit, engineered for enhanced performance, idle quality, and drivability. This complete solution allows you to retrofit powerful B58 ignition coils onto your N54, N55 (E & F series), or S55 platform for increased spark energy and reliability.

Key Features:

• Vehicle Compatibility: Designed for BMW N54, N55-E, N55-F, and S55 engines

• Precision Engineering: Includes CAD-designed, CNC-cut sheet metal brackets for exact fitment

• OEM-Style Coil Boots: Custom-engineered boots designed to work with factory-style spark plugs and maintain proper ignition geometry

• Plug-and-Play Wiring: Proprietary wiring adapters ensure proper signal and seamless integration—no splicing or guesswork

• Recommended Spark Plug: Optimized for standard 0.031" (0.8mm) plug gap (NGK #97506 recommended)

• Performance Gains: Enjoy stronger spark output, smoother idle, improved throttle response, and increased tuning headroom

Why Upgrade?

The B58 coils offer a significant ignition upgrade over stock N-series coils, especially under high boost or aggressive tuning conditions. Whether you're daily driving or pushing serious power on the track, this kit ensures more reliable combustion and consistent performance.

Unleash the full potential of your BMW's ignition system with the Midnight Motorsports B58 Coil Conversion Kit—a true bolt-on upgrade for performance enthusiasts.