New B58 Ignition Coil Conversion Kit - M5X/S5X

B58 ignition coils provide up to 2.5 times more spark energy than OE M5X ignition coils, effectively eliminating misfires even on high-performance setups. Whether your vehicle is heavily modified or completely stock, these ignition coils deliver unparalleled performance with zero downsides! For tuners, the Turner Motorsport kit also allows for precise adjustments to ignition dwell time through standalone engine management, giving you complete control over your engine's performance.

Turner's kit utilizes the factory mounting locations and includes a proprietary boot design with a built-in 1k OHM resistor. Unlike many aftermarket options, this resistor prevents electrical contact springs from burning out, ensuring long-term reliability. The included ignition coil brackets and cover plates are manufactured from durable 5052 aluminum, combining rugged durability with a premium aesthetic. Designed and optimized in-house using cutting-edge 3D scanning hardware and CAD software, these components ensure a perfect fit and clean, factory-like appearance. Installation is a breeze with the included adapter harness, allowing you to add modern ignition coils to your M5X with ease!

Eliminate misfires and unleash the full potential of your M5X-equipped BMW with this industry-leading B58 ignition coil upgrade. Designed for easy installation and unparalleled reliability, it's the ultimate plug-and-play solution for performance enthusiasts.