Variant 1
ECU- Catalog engine
- 1500 255HP
- Controller brand
- SIEMENS
- ECU
- MSE 3.7
- Stock power
- 255 HP
SEA DOO · MSE 3.7 ECU · petrol
SEA DOO RXT MSE 3.7 tuning files
The SEA DOO RXT on the MSE 3.7, mapped from stock file to finished result. Stock output across the matched variants spans 215–255 HP. Petrol calibration here is about crisp response and a result that holds up day to day. Your file is built against the exact ECU software on the car, then operator-verified.
Available solutions
Applicable work for the MSE 3.7 on this petrol. The available set firms up once the exact engine and software are known.
Engine variants & ECU software
9 distinct variants for the SEA DOO RXT on the MSE 3.7 ECU. Reference the engine and controller software when you upload.
Variant 2
ECU- Catalog engine
- 1500 255HP
- Controller brand
- SIEMENS
- ECU
- MSE 3.7
- Stock power
- 255 HP
- ECU SW
- 6827677_318B
- ECU HW
- 5WP2 2454
- Calibration
- 6827677
Variant 3
ECU- Catalog engine
- 1500 255HP
- Controller brand
- SIEMENS
- ECU
- MSE 3.7
- Stock power
- 255 HP
- ECU SW
- 6877178_318B
- ECU HW
- 5WP2 2452
- Calibration
- 6877178
Variant 4
ECU- Catalog engine
- 1500 255HP
- Controller brand
- SIEMENS
- ECU
- MSE 3.7
- Stock power
- 255 HP
- ECU SW
- 6897998_179C
- ECU HW
- 5WP2 2452
- Calibration
- 6897998
Variant 5
ECU- Catalog engine
- 1500 255HP
- Controller brand
- SIEMENS
- ECU
- MSE 3.7
- Stock power
- 255 HP
- ECU SW
- 6851115_318B
- ECU HW
- 5WP2 2452
- Calibration
- 6851115
Variant 6
ECU- Catalog engine
- 1500 255HP
- Controller brand
- SIEMENS
- ECU
- MSE 3.7
- Stock power
- 255 HP
- ECU SW
- 6908671_32AB
- ECU HW
- 5WP2 2452
- Calibration
- 6908671
Variant 7
ECU- Catalog engine
- 1500 215HP
- Engine code
- ROTAX 4-TEC
- Controller brand
- SIEMENS
- ECU
- MSE 3.7
- Stock power
- 215 HP
- ECU SW
- 6396468_176B
- ECU HW
- 5WP2 2452
- Calibration
- 6396468
Variant 8
ECU- Catalog engine
- 1500 215HP
- Engine code
- ROTAX 4-TEC
- Controller brand
- SIEMENS
- ECU
- MSE 3.7
- Stock power
- 215 HP
- ECU SW
- 6416789_216C
- ECU HW
- 5WP2 2452
- Calibration
- 6416789
Variant 9
ECU- Catalog engine
- 1500 215HP
- Controller brand
- SIEMENS
- ECU
- MSE 3.7
- Stock power
- 215 HP
Related vehicles
Other vehicles built on the MSE 3.7 controller or the same engine — handy when a platform spans several models and makes.
Questions, answered.
Which tuning solutions are available for the SEA DOO RXT on the MSE 3.7?
Stage 1, Stage 2, Swirl Flaps Off, Lambda / O2, OPF/GPF Off. The exact set depends on the specific engine and software version.
Do you cover the MSE 3.7 ECU software on this model?
Yes — the SEA DOO RXT on the MSE 3.7 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.