MSD Atomic Stand Alone Transmission Controller

• The MSD Atomic Stand Alone Transmission Controller delivers precise electronic control over modern four-speed automatic transmissions.
• Simple setup through an included handheld monitor with no laptop or complex software required
• Adjustable wide open throttle shift points, shift firmness, and torque converter clutch behavior
• Vehicle speed sensor configuration and customizable operating parameters
• Real-time data monitoring including engine speed, vehicle speed, throttle position, fluid temperature, shifter position, and commanded gear
• Compatible harness kits available for most GM and Ford four-speed automatics, plus integrated Dyno Mode for repeatable chassis dyno testing
• Backed by a 1-Year Limited Warranty

Modern four-speed electronic transmissions have transformed the way street machines and performance builds put power to the pavement. Instead of settling for fixed shift behavior or outdated mechanical controls, you can fine-tune how your transmission responds to throttle input, road speed, and driving style. Whether you are cruising comfortably on the highway or pushing hard at wide open throttle, having complete command over shift timing and feel makes every drive more engaging. Bring precision and confidence to your drivetrain with the MSD Atomic Stand Alone Transmission Controller.

Built to remove the complexity from transmission tuning, the MSD Atomic Stand Alone Transmission Controller allows quick configuration through a supplied Handheld Monitor, no laptop required. After selecting your transmission type, such as a GM 4L60E or Ford 4R70W, and entering key details like engine cylinder count, rear gear ratio, transfer case ratio if applicable, and tire height, you can begin refining shift points, shift firmness, torque converter clutch strategy, wide open throttle behavior, and vehicle speed sensor settings. The handheld can stay mounted to display live data, including engine speed, vehicle speed, throttle position, transmission fluid temperature, shifter position, and commanded gear, or it can be removed once setup is complete.

Harness kits are available for most GM and Ford four-speed automatics, and a dedicated Dyno Mode helps deliver consistent, repeatable chassis dyno testing results. Backed by a 1-Year Limited Warranty.