DiabloSport Pulsar XT Inline Module for 2019-2024 Ram 1500 5.7L HEMI and 3.6L - 32456

The DiabloSport Pulsar XT 32456 is an inline controller for fifth-generation 2019-2024 Ram 1500 trucks with the 5.7L HEMI or 3.6L Pentastar engine. It provides adjustable throttle response and vehicle-setting controls without flashing the factory PCM calibration. On the 5.7L HEMI it also lets you disable the Multi-Displacement System (MDS) to keep the engine in V8 mode.

Supported settings are controlled through the DiabloSport app for Android or iOS. The Pulsar XT changes throttle response and vehicle settings; it does not add horsepower. It does not fit the Ram 1500 Classic, and trucks with paddle shifters are not supported.

Vehicle compatibility

• Fits fifth-generation 2019-2024 Ram 1500 trucks with the 5.7L HEMI or 3.6L Pentastar engine
• Does not fit the Ram 1500 Classic
• Trucks with paddle shifters are not supported

Adjustable settings and features

• Turn the Multi-Displacement System (MDS) on or off on the 5.7L HEMI
• Adjust throttle response with seven presets, with the stock setting also available
• Set tire size from 28 to 40 inches and gear ratio from 2.73 to 5.38
• Disable engine auto start/stop
• Adjust the TPMS warning threshold from 25 to 99 psi
• Disable traction control, display the current gear in Drive, and remember the last Tow/Haul setting
• Read and clear codes and check emissions readiness

Installation and limitations

The Pulsar XT sits inline with the PCM and installs in about 15 minutes. It can be removed in about the same amount of time, and the factory calibration is never flashed. Tire sizes entered above 33.9 inches may disable Park Sense and blind spot monitoring on some trucks. Not for use in California.

Want horsepower as well as the settings? For the 2019-2022 Ram 1500 see the DiabloSport inTune i3 PCM swap kit 8322-X or the Trinity 2 EX PCM swap kit 9322-X. For gauges alongside the Pulsar XT, the Trinity 2 MX monitor pairs with it.

Specifications

• Part number: 32456
• Brand: DiabloSport
• Emissions: Not legal for sale or use in California
• Warranty: 1 year manufacturer warranty
• Country of origin: United States
• Packaged size: 9.5 x 6.5 x 3 in, 2 lb
• UPC: 810065218353

Frequently asked questions

Does the Pulsar XT add horsepower?

No. The Pulsar XT is a drivability and vehicle-settings controller, not a power adder. For a flash tune on the 2019-2022 Ram 1500, see the inTune i3 PCM swap kit 8322-X.

How do I control the Pulsar XT settings?

Supported settings are controlled through the DiabloSport phone app for Android or iOS. Both supported engines get adjustable throttle response, while MDS on/off control applies only to the 5.7L HEMI.

Does it disable MDS on both engines?

No. MDS on/off control applies to the 5.7L HEMI only. The 3.6L Pentastar does not have MDS, so that setting does not apply.

Will it fit a Ram 1500 Classic?

No. This module fits fifth-generation 2019-2024 Ram 1500 trucks, not the Ram 1500 Classic. Trucks with paddle shifters are also not supported.

Can tire-size correction affect driver-assistance features?

Entering a tire size above 33.9 inches may disable Park Sense and blind spot monitoring on some trucks. Check the installation instructions for application-specific limits before changing this setting.

Does installation flash the factory calibration?

No. The module connects inline with the PCM and the factory calibration is never written to.