Variant 1
ECU- Catalog engine
- 2400 272HP
- Controller brand
- DENSO
- ECU
- GEN4
- Stock power
- 272 HP
- Calibration
- 30EF00B0
LEXUS · GEN4 ECU
LEXUS RX GEN4 tuning files
Tuning file coverage for the LEXUS RX running the GEN4 ECU. Stock output across the matched variants spans 272–272 HP. There are 14 distinct variants on file for this combination. Stage 1 and Stage 2 are the safe starting points for this platform. We match the right calibration to your exact software and validate it before delivery.
Available solutions
Solutions that apply to the GEN4 on this vehicle platform. The exact set depends on the specific engine and software version.
Engine variants & ECU software
14 distinct variants for the LEXUS RX on the GEN4 ECU. Reference the engine and controller software when you upload.
Variant 2
ECU- Catalog engine
- 2400 272HP
- Controller brand
- DENSO
- ECU
- GEN4
- Stock power
- 272 HP
- Calibration
- 30EF0100
Variant 3
ECU- Catalog engine
- 2400 272HP
- Controller brand
- DENSO
- ECU
- GEN4
- Stock power
- 272 HP
- Calibration
- 30EK000A
Variant 4
ECU- Catalog engine
- 2400 272HP
- Controller brand
- DENSO
- ECU
- GEN4
- Stock power
- 272 HP
- Calibration
- 30EL80B0
Variant 5
ECU- Catalog engine
- 2400 272HP
- Controller brand
- DENSO
- ECU
- GEN4
- Stock power
- 272 HP
Variant 6
ECU- Catalog engine
- 2400 272HP
- Controller brand
- DENSO
- ECU
- GEN4
- Stock power
- 272 HP
- SW upgrade
- 34D39000
- Calibration
- 34D39000
Variant 7
ECU- Catalog engine
- 2400 272HP
- Controller brand
- DENSO
- ECU
- GEN4
- Stock power
- 272 HP
- Calibration
- 34D460C0
Variant 8
ECU- Catalog engine
- 2400 272HP
- Controller brand
- DENSO
- ECU
- GEN4
- Stock power
- 272 HP
- Calibration
- 34D49300
Variant 9
ECU- Catalog engine
- 2400 272HP
- Controller brand
- DENSO
- ECU
- GEN4
- Stock power
- 272 HP
- Calibration
- 34D750A0
Variant 10
ECU- Catalog engine
- 2400 272HP
- Controller brand
- DENSO
- ECU
- GEN4
- Stock power
- 272 HP
- Calibration
- 34DC2000
Variant 11
ECU- Catalog engine
- 2400 272HP
- Controller brand
- DENSO
- ECU
- GEN4
- Stock power
- 272 HP
- Calibration
- 37803400
Variant 12
ECU- Catalog engine
- 2400 272HP
- Controller brand
- DENSO
- ECU
- GEN4
- Stock power
- 272 HP
- Calibration
- 378J50D0
Variant 13
ECU- Catalog engine
- 2400 272HP
- Controller brand
- DENSO
- ECU
- GEN4
- Stock power
- 272 HP
- Calibration
- 378L10A0
Variant 14
ECU- Catalog engine
- 2400 272HP
- Controller brand
- DENSO
- ECU
- GEN4
- Stock power
- 272 HP
- Calibration
- 378Q30A0
Related vehicles
Other vehicles built on the GEN4 controller or the same engine — handy when a platform spans several models and makes.
Questions, answered.
Which tuning solutions are available for the LEXUS RX on the GEN4?
Stage 1, Stage 2. The exact set depends on the specific engine and software version.
Do you cover the GEN4 ECU software on this model?
Yes — the LEXUS RX on the GEN4 ECU is part of the catalog. Upload your original file and it is matched to the right calibration before any work is done.
How is the file delivered?
Through the TuningBay workflow with operator validation and one safe, sensible result per job. Files we deliver, we stand behind.