




Run a 6.7 Cummins on its own, with no factory body, chassis or transmission modules. The Firepunk Engineering standalone harness powers a CM2100 ECM mounted in its factory spot on the side of the block. The CM2100 is the go-to ECM for 6.7 builds running 6.7 injectors. It's built for body swaps, pull trucks and race builds, and it will even run the engine on a stand with just a battery and fuel.
What's included
You'll also need
Switch tunes on the fly: the CM2100 supports EFILive CSP5, which lets you switch between five tunes while driving. Plug a CSP5 switch into the harness's OBD-II port.
Manual or automatic: works with either. An automatic needs a full manual valve body or a standalone transmission controller.
Moving the ECM into the cab later? A firewall connector is available as an option.
Ships in 3–5 business days.
***This is not a factory replacement harness! It is designed for motor/chassis swaps and competition use.***
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