DIGITAL HORSEPOWERRemanufactured GM Modules

Catalog

Parts, tools, and software for older GM vehicles.

Two kinds of things live here: new-build replacements for control modules GM no longer makes, and the interfaces and software that help you diagnose and extend the life of these vehicles. The catalog is small on purpose — everything is engineered in-house and tested before it earns a place on this page.

XLR Folding Top Control Module circuit board
2004–2009 Cadillac XLR

XLR Folding Top Control Module

New-build replacement for the discontinued FTC — controls the convertible top, deck lid, and tonneau sequence. Drop-in fit on the factory harness.

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GM PCM tool · re-engineered

PowrTuner

DHP's GM programming tool, rebuilt from the ground up — and no longer just for engine tuning. Read, write, and diagnose across more of the vehicle.

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DHP Kepler automotive interface board
J2534 interface · open hardware

Kepler Interface

A low-cost vehicle interface with J2534 support and standalone diagnostics — CAN, GM VPW, Bluetooth, and SD logging in one device.

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Don't see your part? Chasing a discontinued GM module, or want a tool for a system we haven't covered? Tell us the year, model, and part — demand is how we choose what to build next.
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