SUBARU · SH72543 ECU

SUBARU WRX SH72543 tuning files

Here is what the catalog holds for the SUBARU WRX on the SH72543. The matched variants sit between 270 and 310 HP from the factory. 12 distinct variants are catalogued here. 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.

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Available solutions

Applicable work for the SH72543 on this vehicle. The available set firms up once the exact engine and software are known.

Stage 1 Stage 2

Engine variants & ECU software

12 distinct variants for the SUBARU WRX on the SH72543 ECU. Reference the engine and controller software when you upload.

Variant 1

ECU

Catalog engine: 2500 310HP
Controller brand: HITACHI
ECU: SH72543
Stock power: 310 HP
ECU HW: 33920-82J2

Variant 2

ECU

Catalog engine: 2500 310HP
Controller brand: HITACHI
ECU: SH72543
Stock power: 310 HP
ECU HW: 33920-82J2
Calibration: LF9F000U

Variant 3

ECU

Catalog engine: 2500 310HP
Controller brand: HITACHI
ECU: SH72543
Stock power: 310 HP
Calibration: LV9N300E

Variant 4

ECU

Catalog engine: 2500 310HP
Controller brand: HITACHI
ECU: SH72543
Stock power: 310 HP

Variant 5

ECU

Catalog engine: 2500 310HP
Controller brand: HITACHI
ECU: SH72543
Stock power: 310 HP
ECU HW: 33920-82J2
Calibration: LV9N001D

Variant 6

ECU

Catalog engine: 2500 310HP
Controller brand: HITACHI
ECU: SH72543
Stock power: 310 HP
Calibration: LV9N300F

Variant 7

ECU

Catalog engine: 2000 300HP
Engine code: FA20DIT
Controller brand: HITACHI
ECU: SH72543
Stock power: 300 HP
ECU HW: 33920-82J2
Calibration: LV9N100B

Variant 8

ECU

Catalog engine: 2000 270HP
Controller brand: HITACHI
ECU: SH72543
Stock power: 270 HP

Variant 9

ECU

Catalog engine: 2000 270HP
Engine code: FA20DIT
Controller brand: HITACHI
ECU: SH72543
Stock power: 270 HP
Calibration: LF79100R

Variant 10

ECU

Catalog engine: 2000 270HP
Engine code: FA20DIT
Controller brand: HITACHI
ECU: SH72543
Stock power: 270 HP
Calibration: LF79001R

Variant 11

ECU

Catalog engine: 2000 270HP
Controller brand: HITACHI
ECU: SH72543
Stock power: 270 HP
Calibration: LF79002P

Variant 12

ECU

Catalog engine: 2000 270HP
Engine code: FA20DIT
Controller brand: HITACHI
ECU: SH72543
Stock power: 270 HP
Calibration: LF79002Q

Related vehicles

Other vehicles built on the SH72543 controller or the same engine — handy when a platform spans several models and makes.

Questions, answered.

Which tuning solutions are available for the SUBARU WRX on the SH72543?

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

Do you cover the SH72543 ECU software on this model?

Yes — the SUBARU WRX on the SH72543 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.