Ignitions and Electrical› Computers, Chips, Modules and Programmers
RENNtech
ECU+ Upgrade HHT Hand-Held Tuner
SKU: 54.213W.E63BT
Moderate — 2–4 hours
Description
This upgrade utilizes RENNtech's HHT (hand-held tuner) system, allowing for seamless switching between tuned and stock ECU programming without requiring ECU removal. The proprietary module connects via the OBD2 port, delivering the selected file directly to the ECU in minutes and enabling re-flashing as often as desired.
Fitment
Fitment Guaranteed
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Log your build in the MOTORMIA app and we’ll guarantee this part fits your exact setup — or your money back, return shipping covered.
Available on iOS & Android
Specifications
| Brand | RENNtech |
| Part Number | 54.213W.E63BT |
| Category | Ignitions and Electrical |
Buy with Confidence
Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.
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