Home / Tuning / PORSCHE / CAYMAN / SDI 21.1 PORSCHE · SDI 21.1 ECU
PORSCHE CAYMAN SDI 21.1 tuning files PORSCHE CAYMAN on the SDI 21.1: matched, calibrated and delivered with care. Stock output across the matched variants spans 300–365 HP. 17 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.
Available solutions Applicable work for the SDI 21.1 on this vehicle. The available set firms up once the exact engine and software are known.
Engine variants & ECU software 17 distinct variants for the PORSCHE CAYMAN on the SDI 21.1 ECU. Reference the engine and controller software when you upload.
Variant 1 ECU
Catalog engine 2500 365HP
Generation 718 2016-
Matched gains engine GTS - 2.5T 365
Controller brand SIEMENS
ECU SDI 21.1
Stock power 365 HP
Stage 1 power 400 HP
Power increase +35 HP (+10%)
Stock torque 430 Nm
Stage 1 torque 530 Nm
Torque increase +100 Nm (+23%)
Variant 2 ECU
Catalog engine 2500 365HP
Generation 718 2016-
Matched gains engine GTS - 2.5T 365
Controller brand SIEMENS
ECU SDI 21.1
Stock power 365 HP
Stage 1 power 400 HP
Power increase +35 HP (+10%)
Stock torque 430 Nm
Stage 1 torque 530 Nm
Torque increase +100 Nm (+23%)
ECU SW W21H2025KUD16
ECU HW 982906025R
SW upgrade 3609
Variant 3 ECU
Catalog engine 2000 300HP
Generation 718 2016-
Matched gains engine 2.0T 300
Controller brand SIEMENS
ECU SDI 21.1
Stock power 300 HP
Stage 1 power 370 HP
Power increase +70 HP (+23%)
Stock torque 380 Nm
Stage 1 torque 460 Nm
Torque increase +80 Nm (+21%)
Variant 4 ECU
Catalog engine 2000 300HP
Generation 718 2016-
Matched gains engine 2.0T 300
Controller brand SIEMENS
ECU SDI 21.1
Stock power 300 HP
Stage 1 power 370 HP
Power increase +70 HP (+23%)
Stock torque 380 Nm
Stage 1 torque 460 Nm
Torque increase +80 Nm (+21%)
ECU SW W21H2025RUM10
ECU HW 982906024CD
SW upgrade 3527
Variant 5 ECU
Catalog engine 2000 300HP
Generation 718 2016-
Matched gains engine 2.0T 300
Controller brand SIEMENS
ECU SDI 21.1
Stock power 300 HP
Stage 1 power 370 HP
Power increase +70 HP (+23%)
Stock torque 380 Nm
Stage 1 torque 460 Nm
Torque increase +80 Nm (+21%)
ECU SW W21H2020R5D10
ECU HW 982906023CE
SW upgrade 3519
Variant 6 ECU
Catalog engine 2000 300HP
Generation 718 2016-
Matched gains engine 2.0T 300
Controller brand SIEMENS
ECU SDI 21.1
Stock power 300 HP
Stage 1 power 370 HP
Power increase +70 HP (+23%)
Stock torque 380 Nm
Stage 1 torque 460 Nm
Torque increase +80 Nm (+21%)
ECU SW W21H0025R5D14
ECU HW 982906024AT
SW upgrade 3338
Calibration 982906024AT_W21H0025R5D14_3338
Variant 7 ECU
Catalog engine 2000 300HP
Generation 718 2016-
Matched gains engine 2.0T 300
Controller brand SIEMENS
ECU SDI 21.1
Stock power 300 HP
Stage 1 power 370 HP
Power increase +70 HP (+23%)
Stock torque 380 Nm
Stage 1 torque 460 Nm
Torque increase +80 Nm (+21%)
ECU SW W21H2020REM10
ECU HW 982906023CB
SW upgrade 3516
Variant 8 ECU
Catalog engine 2000 300HP
Generation 718 2016-
Matched gains engine 2.0T 300
Controller brand SIEMENS
ECU SDI 21.1
Stock power 300 HP
Stage 1 power 370 HP
Power increase +70 HP (+23%)
Stock torque 380 Nm
Stage 1 torque 460 Nm
Torque increase +80 Nm (+21%)
ECU SW W21H2025RED10
ECU HW 982906024CA
SW upgrade 3524
Variant 9 ECU
Catalog engine 2000 300HP
Generation 718 2016-
Matched gains engine 2.0T 300
Controller brand SIEMENS
ECU SDI 21.1
Stock power 300 HP
Stage 1 power 370 HP
Power increase +70 HP (+23%)
Stock torque 380 Nm
Stage 1 torque 460 Nm
Torque increase +80 Nm (+21%)
ECU SW W21H2025KED16
ECU HW 982906025P
SW upgrade 3607
Variant 10 ECU
Catalog engine 2000 300HP
Generation 718 2016-
Matched gains engine 2.0T 300
Controller brand SIEMENS
ECU SDI 21.1
Stock power 300 HP
Stage 1 power 370 HP
Power increase +70 HP (+23%)
Stock torque 380 Nm
Stage 1 torque 460 Nm
Torque increase +80 Nm (+21%)
ECU SW W21R2025SOD16
ECU HW 982906027N
SW upgrade 3729
Variant 11 ECU
Catalog engine 2000 300HP
Generation 718 2016-
Matched gains engine 2.0T 300
Controller brand SIEMENS
ECU SDI 21.1
Stock power 300 HP
Stage 1 power 370 HP
Power increase +70 HP (+23%)
Stock torque 380 Nm
Stage 1 torque 460 Nm
Torque increase +80 Nm (+21%)
ECU SW W21H2020RUM10
ECU HW 982906023CD
SW upgrade 3518
Variant 12 ECU
Catalog engine 2000 300HP
Generation 718 2016-
Matched gains engine 2.0T 300
Controller brand SIEMENS
ECU SDI 21.1
Stock power 300 HP
Stage 1 power 370 HP
Power increase +70 HP (+23%)
Stock torque 380 Nm
Stage 1 torque 460 Nm
Torque increase +80 Nm (+21%)
ECU SW W21H2025K5D16
ECU HW 982906025T
SW upgrade 3611
Variant 13 ECU
Catalog engine 2000 300HP
Generation 718 2016-
Matched gains engine 2.0T 300
Controller brand SIEMENS
ECU SDI 21.1
Stock power 300 HP
Stage 1 power 370 HP
Power increase +70 HP (+23%)
Stock torque 380 Nm
Stage 1 torque 460 Nm
Torque increase +80 Nm (+21%)
ECU SW W21H2020N5D10
ECU HW 982906023CG
SW upgrade 3521
Variant 14 ECU
Catalog engine 2000 300HP
Generation 718 2016-
Matched gains engine 2.0T 300
Controller brand SIEMENS
ECU SDI 21.1
Stock power 300 HP
Stage 1 power 370 HP
Power increase +70 HP (+23%)
Stock torque 380 Nm
Stage 1 torque 460 Nm
Torque increase +80 Nm (+21%)
ECU SW W21H0020N5D31
ECU HW 982906023BP
SW upgrade 3466
Variant 15 ECU
Catalog engine 2000 300HP
Generation 718 2016-
Matched gains engine 2.0T 300
Controller brand SIEMENS
ECU SDI 21.1
Stock power 300 HP
Stage 1 power 370 HP
Power increase +70 HP (+23%)
Stock torque 380 Nm
Stage 1 torque 460 Nm
Torque increase +80 Nm (+21%)
ECU SW W21H0025RCD14
ECU HW 982906024BB
SW upgrade 3340
Variant 16 ECU
Catalog engine 2000 300HP
Generation 718 2016-
Matched gains engine 2.0T 300
Controller brand SIEMENS
ECU SDI 21.1
Stock power 300 HP
Stage 1 power 370 HP
Power increase +70 HP (+23%)
Stock torque 380 Nm
Stage 1 torque 460 Nm
Torque increase +80 Nm (+21%)
ECU SW W21H0025RED31
ECU HW 982906024BF
SW upgrade 3469
Calibration 982906023BF_3460
Variant 17 ECU
Catalog engine 2000 300HP
Generation 718 2016-
Matched gains engine 2.0T 300
Controller brand SIEMENS
ECU SDI 21.1
Stock power 300 HP
Stage 1 power 370 HP
Power increase +70 HP (+23%)
Stock torque 380 Nm
Stage 1 torque 460 Nm
Torque increase +80 Nm (+21%)
ECU SW W21H0020RED14
ECU HW 982906023AP
SW upgrade 3329 Related vehicles Other vehicles built on the SDI 21.1 controller or the same engine — handy when a platform spans several models and makes.
Questions, answered. Which tuning solutions are available for the PORSCHE CAYMAN on the SDI 21.1? Stage 1, Stage 2. The exact set depends on the specific engine and software version.
Do you cover the SDI 21.1 ECU software on this model? Yes — the PORSCHE CAYMAN on the SDI 21.1 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.