BMW 8 serie - 840i 340hp
2 ECUs found for this engine. Select an ECU to view available tuning services and pricing.
BMW 8 serie 840i 340hp Engine Specifications
BMW 8 serie 840i 340hp Stage 1 Chiptuning Results
| Variant | Original HP | Tuned HP | +HP | Original Nm | Tuned Nm | +Nm |
|---|---|---|---|---|---|---|
| 840i 340hp | 340 | 400 | +60 | 500 | 580 | +80 |
| 850i 530hp | 530 | 650 | +120 | 750 | 880 | +130 |
BMW 8 serie 840i 340hp: Before this file is prepared
For the BMW 8 serie 840i 340hp, the uploaded file is the final reference. We check whether it is original or already modified before preparing the order, and we contact you first if the read or selected service does not match the vehicle data.
- Upload a complete original ECU read from the tool you used, or a TCU read only when the selected service is gearbox tuning.
- Add the vehicle year, gearbox, read/write tool and any dashboard or diagnostic symptoms.
- Select only the services that match the actual vehicle hardware and intended legal use.
Other 8 serie Engines
BMW 8 serie 840i 340hp Frequently Asked Questions
- What tuning services are available for the BMW 8 serie 840i 340hp?
- WEREMAP offers 30 tuning services across 2 ECU variants for the BMW 8 serie 840i 340hp.
- How much does ECU tuning cost for a BMW 8 serie?
- ECU tuning prices for the BMW 8 serie 840i 340hp range from 24 to 180 credits, depending on the ECU variant and tuning service selected.
- What ECU does the BMW 8 serie 840i 340hp use?
- The BMW 8 serie 840i 340hp is available with the following ECU variants: Bosch MG1CS003, Bosch MG1CS201. WEREMAP provides professional tuning files for all of these.
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