LEXUS · GEN1 ECU

LEXUS GS 300 GEN1 tuning files

Here is what the catalog holds for the LEXUS GS 300 on the GEN1. Stock output across the matched variants spans 256–256 HP. 10 distinct variants are catalogued here. We start conservative here — Stage 1 and Stage 2 are the dependable baseline. We match the right calibration to your exact software and validate it before delivery.

Upload your file →All GS 300 coverage

Available solutions

Applicable work for the GEN1 on this vehicle. The available set firms up once the exact engine and software are known.

Stage 1 Stage 2

Engine variants & ECU software

10 distinct variants for the LEXUS GS 300 on the GEN1 ECU. Reference the engine and controller software when you upload.

Variant 1

ECU

Catalog engine: 3000 256HP
Controller brand: DENSO
ECU: GEN1
Stock power: 256 HP
ECU SW: 89663-30650
SW upgrade: 33065000
Calibration: 33065000

Variant 2

ECU

Catalog engine: 3000 256HP
Controller brand: DENSO
ECU: GEN1
Stock power: 256 HP
ECU SW: 89663-30652
SW upgrade: 33065200
Calibration: 33065200

Variant 3

ECU

Catalog engine: 3000 256HP
Controller brand: DENSO
ECU: GEN1
Stock power: 256 HP
ECU SW: 89663-30654
SW upgrade: 33065400
Calibration: 33065400

Variant 4

ECU

Catalog engine: 3000 256HP
Engine code: 3GR-FSE
Controller brand: DENSO
ECU: GEN1
Stock power: 256 HP
ECU SW: 89663-30660
SW upgrade: 33066000
Calibration: 33066000

Variant 5

ECU

Catalog engine: 3000 256HP
Engine code: 3GR-FSE
Controller brand: DENSO
ECU: GEN1
Stock power: 256 HP
ECU SW: 89663-30661
ECU HW: 89661-30361
SW upgrade: 33066100
Calibration: 33066100

Variant 6

ECU

Catalog engine: 3000 256HP
Engine code: 3GR-FSE
Controller brand: DENSO
ECU: GEN1
Stock power: 256 HP
ECU SW: 89663-30663
ECU HW: 89661-30362
SW upgrade: 33066300
Calibration: 33066300

Variant 7

ECU

Catalog engine: 3000 256HP
Engine code: 3GR-FSE
Controller brand: DENSO
ECU: GEN1
Stock power: 256 HP
ECU SW: 89663-30664
ECU HW: 89661-30362
SW upgrade: 33066400
Calibration: 33066400

Variant 8

ECU

Catalog engine: 3000 256HP
Engine code: 3GR-FSE
Controller brand: DENSO
ECU: GEN1
Stock power: 256 HP
ECU SW: 89663-30681
SW upgrade: 33068100
Calibration: 33068100

Variant 9

ECU

Catalog engine: 3000 256HP
Controller brand: DENSO
ECU: GEN1
Stock power: 256 HP
ECU SW: 89663-30G01
SW upgrade: 330G0100
Calibration: 330G0100

Variant 10

ECU

Catalog engine: 3000 256HP
Controller brand: DENSO
ECU: GEN1
Stock power: 256 HP
ECU SW: 89663-30G10
SW upgrade: 330G1000
Calibration: 330G1000

Related vehicles

Other vehicles built on the GEN1 controller or the same engine — handy when a platform spans several models and makes.

Questions, answered.

Which tuning solutions are available for the LEXUS GS 300 on the GEN1?

Stage 1, Stage 2. The exact set depends on the specific engine and software version.

Do you cover the GEN1 ECU software on this model?

Yes — the LEXUS GS 300 on the GEN1 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.