2020-2022 Duramax L5P Banks Derringer High Output Tuner For Use w/ iDash (67133)
Already own an iDash? This is the Derringer HO module by itself — same +117 hp / +225 lb-ft you'd get from the bundled kit, just without the iDash display. Plug it in, link it to your existing iDash Pro or Data Pro, and pick from six power levels on-the-fly.
The Derringer High Output for the 2020-2022 L5P Duramax takes the truck from 419 hp / 835 lb-ft up to 523 hp / 1,039 lb-ft — without a reflash, without a trace in the ECM, and without compromising your factory warranty.
- +117 hp / +225 lb-ft peak gains over stock
- Six on-the-fly power levels (~23 hp per level)
- Patented ActiveSafety circuitry — monitors engine 100×/second
- TransCommand intelligent shift tuning for transmission protection
- AutoRate dynamic tuning with real-time ECM communication
- Altitude compensation
- 10% cooler EGTs than competitor tuners (no over-fueling)
- Works during cruise control
- Warranty-friendly — no reflash, no trace
- 50-state compliant
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