MAZDA · SH725X ECU

MAZDA MX5 SH725X tuning files

Tuning file coverage for the MAZDA MX5 running the SH725X ECU. The matched variants sit between 131 and 160 HP from the factory. 22 distinct variants are catalogued here. We start conservative here — Stage 1 and Stage 2 are the dependable baseline. Each file is tied to the precise software on your car and checked before it goes out.

Upload your file →All MX5 coverage Custom ECU tuning file service

Available solutions

Applicable work for the SH725X on this vehicle. The available set firms up once the exact engine and software are known.

Stage 1 Stage 2

Engine variants & ECU software

22 distinct variants for the MAZDA MX5 on the SH725X ECU. Reference the engine and controller software when you upload.

Variant 1

ECU

Catalog engine: 2000 160HP
Controller brand: DENSO
ECU: SH725X
Stock power: 160 HP
ECU SW: PEP3-18881-A
SW upgrade: PEP3-188K2-A
Calibration: PEP3-18881-A_PEP3-188K2-A

Variant 2

ECU

Catalog engine: 2000 160HP
Controller brand: DENSO
ECU: SH725X
Stock power: 160 HP
ECU SW: PSP5-18881-D
SW upgrade: PSP5-188K2-D
Calibration: PSP5-18881-D_PSP5-188K2-D

Variant 3

ECU

Catalog engine: 2000 160HP
Controller brand: DENSO
ECU: SH725X
Stock power: 160 HP
ECU SW: PSRW-18881-A
SW upgrade: PSRW-188K2-A
Calibration: PSRW-18881-A_PSRW-188K2-A

Variant 4

ECU

Catalog engine: 2000 160HP
Controller brand: DENSO
ECU: SH725X
Stock power: 160 HP
ECU SW: PSM8-18881-C
SW upgrade: PSM8-188K2-C
Calibration: PSM8-18881-C_PSM8-188K2-C

Variant 5

ECU

Catalog engine: 2000 160HP
Controller brand: DENSO
ECU: SH725X
Stock power: 160 HP
ECU SW: PSP8-18881-E
SW upgrade: PSP8-188K2-E
Calibration: PSP8-18881-E_PSP8-188K2-E

Variant 6

ECU

Catalog engine: 2000 160HP
Controller brand: DENSO
ECU: SH725X
Stock power: 160 HP
ECU SW: PSM4-18881-B
SW upgrade: PSM4-188K2-B
Calibration: PSM4-18881-B_PSM4-188K2-B

Variant 7

ECU

Catalog engine: 2000 160HP
Controller brand: DENSO
ECU: SH725X
Stock power: 160 HP
ECU SW: PEA7-18881-
SW upgrade: PEA7-188K2-
Calibration: PEA7-18881-_PEA7-188K2-

Variant 8

ECU

Catalog engine: 2000 160HP
Controller brand: DENSO
ECU: SH725X
Stock power: 160 HP
ECU SW: PSFV-18881-B
SW upgrade: PSFV-188K2-B
Calibration: PSFV-18881-B_PSFV-188K2-B

Variant 9

ECU

Catalog engine: 2000 160HP
Controller brand: DENSO
ECU: SH725X
Stock power: 160 HP
ECU SW: PSPL-18881-
SW upgrade: PSPL-188K2-
Calibration: PSPL-18881-_PSPL-188K2-

Variant 10

ECU

Catalog engine: 2000 160HP
Controller brand: DENSO
ECU: SH725X
Stock power: 160 HP
ECU SW: PSM8-18881-D
SW upgrade: PSM8-188K2-D
Calibration: PSM8-18881-D_PSM8-188K2-D

Variant 11

ECU

Catalog engine: 2000 160HP
Controller brand: DENSO
ECU: SH725X
Stock power: 160 HP
ECU SW: PSNW-18881-A
SW upgrade: PSNW-188K2-A
Calibration: PSNW-18881-A_PSNW-188K2-A

Variant 12

ECU

Catalog engine: 2000 160HP
Controller brand: DENSO
ECU: SH725X
Stock power: 160 HP
ECU SW: P5KS-18881-A
SW upgrade: P5KS-188K2-A
Calibration: P5KS-18881-A_P5KS-188K2-A

Variant 13

ECU

Catalog engine: 2000 160HP
Controller brand: DENSO
ECU: SH725X
Stock power: 160 HP
ECU SW: PSRW-18881-
SW upgrade: PSRW-188K2-
Calibration: PSRW-18881-_PSRW-188K2-

Variant 14

ECU

Catalog engine: 2000 160HP
Controller brand: DENSO
ECU: SH725X
Stock power: 160 HP
ECU SW: PSP2-18881-C
SW upgrade: PSP2-188K2-C
Calibration: PSP2-18881-C_PSP2-188K2-C

Variant 15

ECU

Catalog engine: 2000 160HP
Controller brand: DENSO
ECU: SH725X
Stock power: 160 HP
ECU SW: PSP9-18881-B
SW upgrade: PSP9-188K2-B
Calibration: PSP9-18881-B_PSP9-188K2-B

Variant 16

ECU

Catalog engine: 2000 160HP
Controller brand: DENSO
ECU: SH725X
Stock power: 160 HP
ECU SW: PSRM-18881-B
SW upgrade: PSRM-188K2-B
Calibration: PSRM-18881-B_PSRM-188K2-B

Variant 17

ECU

Catalog engine: 2000 160HP
Controller brand: DENSO
ECU: SH725X
Stock power: 160 HP
ECU SW: PSRX-18881-
SW upgrade: PSRX-188K2-
Calibration: PSRX-18881-_PSRX-188K2-

Variant 18

ECU

Catalog engine: 2000 160HP
Controller brand: DENSO
ECU: SH725X
Stock power: 160 HP
ECU SW: PSM9-18881-C
SW upgrade: PSM9-188K2-C
Calibration: PSM9-18881-C_PSM9-188K2-C

Variant 19

ECU

Catalog engine: 2000 160HP
Controller brand: DENSO
ECU: SH725X
Stock power: 160 HP
ECU SW: PSM7-18881-E
SW upgrade: PSM7-188K2-E
Calibration: PSM7-18881-E_PSM7-188K2-E

Variant 20

ECU

Catalog engine: 1500 131HP
Generation: 2016-
Matched gains engine: 1.5 Skyactiv-G 131
Controller brand: DENSO
ECU: SH725X
Stock power: 131 HP
Stage 1 power: 141 HP
Power increase: +10 HP (+8%)
Stock torque: 150 Nm
Stage 1 torque: 160 Nm
Torque increase: +10 Nm (+7%)
ECU SW: P55D-18881-E
SW upgrade: P55D-188K2-E
Calibration: P55D-18881-E_P55D-188K2-E

Variant 21

ECU

Catalog engine: 1500 131HP
Generation: 2016-
Matched gains engine: 1.5 Skyactiv-G 131
Controller brand: DENSO
ECU: SH725X
Stock power: 131 HP
Stage 1 power: 141 HP
Power increase: +10 HP (+8%)
Stock torque: 150 Nm
Stage 1 torque: 160 Nm
Torque increase: +10 Nm (+7%)
ECU SW: P59W-18881-E
SW upgrade: P59W-188K2-E
Calibration: P59W-18881-E_P59W-188K2-E

Variant 22

ECU

Catalog engine: 1500 131HP
Generation: 2016-
Matched gains engine: 1.5 Skyactiv-G 131
Controller brand: DENSO
ECU: SH725X
Stock power: 131 HP
Stage 1 power: 141 HP
Power increase: +10 HP (+8%)
Stock torque: 150 Nm
Stage 1 torque: 160 Nm
Torque increase: +10 Nm (+7%)
ECU SW: P59W-18881-C
SW upgrade: P59W-188K2-C
Calibration: P59W-18881-C_P59W-188K2-C

Related vehicles

Other vehicles built on the SH725X controller or the same engine — handy when a platform spans several models and makes.

Questions, answered.

Which tuning solutions are available for the MAZDA MX5 on the SH725X?

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

Do you cover the SH725X ECU software on this model?

Yes — the MAZDA MX5 on the SH725X 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.