7100-7900 RPM Odd Series Module Kit

The MSD Ignition 7100-7900 RPM Odd Series Module Kit is a precision ignition control component engineered for high-RPM engine management and tuning applications. This module chip operates across a 7100 to 7900 RPM window, delivering 200 RPM incremental adjustments in the odd-numbered configuration. Designed for users requiring granular control over ignition timing and rev-limiting parameters, the MSD 87471 module enables fine-tuned engine performance across the critical upper-RPM band where precision becomes essential for both safety and drivability.

The 200 RPM increments across this range allow tuners and performance enthusiasts to dial in exact rev-limit thresholds without overshooting target parameters. The odd-series designation indicates this module's specific position within MSD's broader ignition module ecosystem, ensuring compatibility with systems calibrated for odd-increment specifications. At just 0.13 lbs with compact dimensions of 6.05 x 1.05 x 7.85 inches, the module integrates seamlessly into existing ignition architectures without adding weight or bulk to the installation. This kit format provides everything needed for setup and operation in a single package.

MSD Ignition RPM module chips are favored by engine builders, dyno operators, and performance shops managing naturally aspirated and forced-induction applications where upper-RPM stability and rev-limit precision directly impact both performance and engine longevity. Whether optimizing a street performance build, preparing a competition engine, or fine-tuning a tuned platform, this 7100-7900 RPM range addresses the high-end band where many engines reach peak power delivery. The modular design supports system upgrades and recalibration as tuning requirements evolve.

MSD's ignition modules are recognized for precision control and repeatability across demanding automotive and motorsports applications. The 87471 part number represents a specific capability tier within their product range, chosen by builders who require exact RPM window management rather than broader or lower-range alternatives. Ordering the correct MPN ensures drop-in compatibility with your existing MSD system architecture.