
Midnight Motorsports was born after hours—often past midnight—out of a passion for performance. We specialize in high performance modifications for modern turbocharged BMWs, proudly serving the Pacific Northwest. Our mission is to design top-tier products at affordable prices. Every part we offer is rigorously engineered and tested through our motorsports programs to ensure maximum performance and reliability for your vehicle.
B58 Coil Conversion Boots
For N54, N55, and S55 B58 Coil Conversion Kits
Need a fresh set of boots for your coil conversion setup? Our Replacement B58 Coil Conversion Boots are designed specifically for use with Midnight Motorsports Coil Conversion Kits and are compatible with other aftermarket B58 coil conversion systems.
These proprietary boots allow reliable adaptation of B58 ignition coils to the N54, N55, and S55 platforms. Engineered from high-temp, durable silicone, they’re built to withstand the heat and stress of high-performance applications—while remaining serviceable over time without cracking, hardening, or failure.
Boots are designed to be used with OEM style spark plugs. We recommend NGK# 97506 gapped to 0.025" on most applications.
Keep your ignition system running at its best with reliable, long-lasting coil conversion boots.