Ultra 6AL Plus Ignition Box - Black Finish

The MSD IGNITION Ultra 6AL Plus Ignition Box in black finish is a digital CD-based ignition system engineered for high-RPM engine control and multi-spark capability. This 45,000-volt system delivers multiple spark events per ignition cycle, enabling faster and more complete fuel combustion across a broad RPM range. The included harness simplifies installation, making this a plug-and-play upgrade for engines requiring advanced ignition timing management and boost-ready performance characteristics.

Key specifications include a 3-step programmable rev limiter that allows custom RPM limits to protect engine components and optimize shift points during competition or street use. The multi-spark technology maintains ignition efficiency even at extreme engine speeds where traditional systems struggle. At 3 pounds and measuring 8 x 2.5 x 11 inches, the compact form factor fits into tight engine bay configurations typical of performance builds. The black anodized finish resists corrosion and blends with modern engine bay aesthetics.

This ignition box serves applications ranging from street performance and bracket racing to high-boost turbo and supercharger setups where ignition timing stability is critical. Users operating modified engines with aggressive cam timing, nitrous systems, or forced induction benefit from the adjustable rev limiter and multi-spark output. The system is designed for users who require programmatic control over ignition events—a necessity in platforms where factory ECU integration is impractical or where standalone ignition management enhances reliability.

Digital CD ignition boxes occupy the mid-range of performance ignition solutions, offering greater RPM capability and multi-spark benefits compared to standard points or MSD Blaster-style systems, while remaining more accessible than fully programmable ECU solutions. The Ultra 6AL Plus represents a standard reference point in the aftermarket performance ignition category, recognized for straightforward operation and tuning flexibility without requiring laptop configuration.