Edge Pulsar MD Inline Module for 2019-2023 Silverado 4500HD 5500HD 6500HD and International CV515 6.6L L5D Duramax - 22403

The Edge Pulsar MD 22403 is an inline power module for the 6.6L L5D Duramax in the 2019-2023 Chevrolet Silverado 4500HD, 5500HD and 6500HD and the International CV515. It connects with factory-style plugs, never flashes the ECM, and comes out with no trace, which matters for fleet trucks under warranty. Emissions equipment stays in place and working.

Five power levels are selected from the factory steering wheel controls. Edge's published gains: Economy 25 hp/70 lb-ft, Heavy Towing 60/125, Light Towing 90/180, Drive 95/255 and Extreme 120/280, with up to 135 hp and 300 lb-ft at 2,550 rpm. In Edge's testing the module took 2.1 seconds out of the 0-60 time.

Vehicle compatibility

• 2019-2023 Chevrolet Silverado 4500HD, 5500HD and 6500HD with the 6.6L L5D Duramax
• 2019-2023 International CV515 with the 6.6L L5D Duramax
• Requires factory cruise control (the steering wheel buttons are used to change levels)

Power and work-truck features

• Five power levels changed on the fly from the steering wheel
• Up to 135 hp and 300 lb-ft peak gain
• Speedometer calibration for tires up to 50 inches
• Commanded manual DPF regeneration
• Read and clear trouble codes
• Engine protection backdowns under load
• The top speed limiter is not adjustable on this platform

Installation and limitations

The module connects inline at the ECM with factory-style connectors and mounting hardware is included. No cutting, splicing or flash. Removal returns the truck to stock. Not for use in California.

Specifications

• Part number: 22403
• Brand: Edge
• Emissions: Not legal for sale or use in California
• Warranty: 1 year manufacturer warranty
• Country of origin: United States
• Packaged size: 12 x 12 x 3 in, 3 lb
• UPC: 810065218384

Frequently asked questions

Is this the same as the Pulsar for the 2500HD and 3500HD?

No. The Pulsar MD is specific to the medium duty L5D Duramax in the 4500HD, 5500HD, 6500HD and CV515. The 2023 L5P HD trucks use the Pulsar LT 22411.

Does it keep the emissions system working?

Yes. All factory emissions equipment stays in place and the module includes a commanded DPF regen.

Can I raise the top speed limiter?

No. Edge notes the speed limiter is not adjustable on this platform.

Does it void the warranty?

The module leaves no trace when removed and does not alter the ECM calibration. Warranty decisions are up to the dealer; Edge designs the module to be removable for service.