Agricultural · ECU Remapping
John Deere AGRICULTURE SELF-PROPELLED SPRAYERS R4040i 6.8l 258 hp Tuning (2015–)
Factory specification and Stage 1 remap gains for the John Deere AGRICULTURE SELF-PROPELLED SPRAYERS R4040i 6.8l 258 hp (2015–). A Stage 1 calibration adds 27 BHP and 85 Nm — software only, no hardware modifications required.
| Measure | Original | Stage 1 |
|---|---|---|
Power BHP | 258 | 285Estimated +27 BHP · +10% |
Torque Nm | 825Estimated | 910 +85 Nm · +10% |
+27 BHP
Stage 1 power gain (estimated)
+85 Nm
Stage 1 torque gain (estimated)
Estimated figures are based on engine, ECU and comparable application data. Actual results can vary depending on software version, machine condition and configuration.
Rolling road
Dyno Graph
Power (BHP, solid) and torque (Nm, dashed) across engine speed (RPM). Peak figures match our database exactly.
Hover / touch the graph
Stock: 258 bhp · 825 Nm (peak)
Stage 1: 285 bhp · 910 Nm (peak)
Tuning tool compatibility
This ECU is listed in 4 of 4 manufacturer compatibility databases.
AutoTuner
Supported
ECU: Bosch EDC17CV41
Alientech KESS3
Supported
ECU: Bosch EDC17CV41
Magicmotorsport FLEX
Supported
ECU: Bosch EDC17CV41
Dimsport New Genius / New Trasdata
Supported
ECU: Bosch EDC17CV41
Existing customers upload their ECU file via the Regal Tuning File Portal. New to Regal? Request a quote first.
20+ years of ECU calibration
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Tell us your machine and registration — we'll confirm support and the exact expected gains for your engine before any work begins.