2-Step Launch Control - GM LS Engines

The 2-Step Launch Control for GM LS Engines (MSD 8733) is a purpose-built ignition module designed to maximize traction off the line on drag-strip and high-performance applications. This controller allows you to run a lower engine RPM during the launch phase, then automatically steps up to full ignition advance once the vehicle hooks up and accelerates. Built by MSD IGNITION, a trusted name in performance ignition systems for over four decades, this module is essential for LS-powered vehicles where wheel spin robs you of ET and consistency during hard acceleration.

The 2-Step Launch Control works by retarding ignition timing during the initial launch window, effectively softening initial torque delivery to keep the tires planted rather than spinning. Once the vehicle achieves sufficient wheel speed and traction, the module automatically advances timing back to the user-programmed curve for maximum power. This staged timing control reduces shock load on the drivetrain, improves consistency in heads-up racing, and works seamlessly with LS platform engines from naturally aspirated small-blocks to heavily turbocharged applications. The compact design (6 x 3 x 10.5 inches, weighing just 1.16 lbs) integrates easily into existing MSD ignition harnesses without requiring extensive rewiring.

This module benefits bracket racers, street/strip enthusiasts, and dedicated drag competitors running Gen III and Gen IV LS engines who demand repeatable launches and lower ET consistency. Whether you're running a carbureted LS, EFI conversion, or turbo build, the 2-Step Launch Control pairs with MSD ignition systems to give you the edge off the starting line. Installation requires basic ignition system knowledge and compatibility with your existing MSD control box—consult your vehicle's specific LS platform wiring diagram and MSD documentation to ensure proper integration with your fuel delivery and timing curve setup.