Digital-6 Plus Ignition Control Box

The MSD IGNITION Digital-6 Plus Ignition Control Box (MSD 6520) is a programmable engine management solution designed for street and strip enthusiasts who demand precise ignition timing control and repeatable performance. This advanced ignition control box is ideal for those building carbureted muscle cars, tuning turbocharged engines, or optimizing fuel-injected platforms.

At its core, the Digital-6 Plus utilizes digital logic and high-energy capacitor discharge technology to produce a hotter, faster-rising spark voltage compared to stock systems. This allows for reliable spark delivery under extreme cylinder pressures and lean fuel conditions. The box features user-configurable rev limiters and multiple timing curves, making it adaptable to various performance scenarios.

With a weight of 3.75 lbs, the Digital-6 Plus is compact enough to fit under a dash or be mounted to a firewall. It accepts input from distributors or crank triggers and outputs a programmable spark advance curve tailored across the entire RPM range. This makes it an essential tool for serious modifiers looking to maximize power and prevent detonation.