Edge Pulsar LT Inline Module for 2015-2019 Silverado and Sierra 2500HD 3500HD 6.0L Gas - 22455

The Edge Pulsar LT 22455 is an inline drivability module for the 2015-2019 Chevrolet Silverado and GMC Sierra 2500HD, 3500 and 3500HD with the 6.0L gas engine. It connects inline at the ECM with factory-style plugs, nothing is cut or spliced, and the ECM calibration is never touched, so the truck is back to stock the moment you unplug it.

Owners buy this one for towing manners rather than peak power: the throttle booster takes the dead spot out of the pedal, high idle helps when running a PTO or warming up in the cold, and tire and gear correction keeps the speedometer and shift points honest after a lift or re-gear. Adjustments are made from the factory steering wheel buttons.

Vehicle compatibility

• 2015-2019 Chevrolet Silverado 2500HD, 3500 and 3500HD with the 6.0L gas V8
• 2015-2019 GMC Sierra 2500HD and 3500HD with the 6.0L gas V8
• Not for the Duramax; the 2023 L5P uses the Pulsar LT 22411

Adjustable settings

• Throttle response, changed on the fly from the steering wheel controls
• Tire size 29-50.9 inches and gear ratio 2.00-6.99 for the speedometer
• High idle 700-1100 rpm
• TPMS threshold 40-99 psi
• Top speed limiter 82-140 mph
• Clear diagnostic trouble codes, Wi-Fi updates

Installation and limitations

The module connects inline at the ECM with factory-style connectors; no cutting, splicing or flash. Settings are changed with the cruise control buttons on the steering wheel. Remove the module and the truck is stock.

Note on re-gears: on these GM trucks a physical ring and pinion change disables factory cruise control. The Pulsar LT will correct the speedometer for the new ratio but cannot bring cruise back; that takes full ECM/TCM tuning. Not for use in California.

Specifications

• Part number: 22455
• Brand: Edge
• Emissions: Not legal for sale or use in California
• Warranty: 1 year manufacturer warranty
• Country of origin: United States
• Packaged size: 9.5 x 6.3 x 4 in, 3.6 lb
• UPC: 810009938965

Frequently asked questions

Does the Pulsar LT add horsepower?

No. It is a drivability and settings module: throttle response, tire and gear correction, high idle, TPMS and speed limiter.

Will it restore cruise control after a re-gear?

No. GM disables cruise when the ring and pinion are changed, and the Pulsar LT cannot re-enable it. Full ECM/TCM tuning is required for that.

Does it flash the ECM?

No. The factory calibration is untouched and the module can be removed without a trace.

Do I need a phone app?

No. Everything is adjusted with the factory steering wheel buttons.