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The standard power of your GMC Sierra 6.6 Duramax 365hp vehicle is factory 365 hp / 894 nm. After GMC Sierra chip tuning custom vehicle software, your vehicle will gain +30 hp / +51 nm additional power and reach a total power of 395 hp / 945 nm. Since there will be no change in the exhaust emission values of your vehicle, there will be no smoke in your vehicle.
GMC Sierra 6.6 Duramax 365hp chip tuning stage1 file is completed in about 1-2 hours.
| Type of fuel | diesel |
| Method | Chiptuning |
| Tuning type | Stage 1 |
| Cylinder content | 6599 CC |
| Compression ratio | 16.80 : 1 |
| Bore X stroke | 103.00 X 99.00 mm |
| Engine number | LMM |
| Engine ECU | Bosch EDC16C42 / Bosch EDC17CP18 |
| Gearbox ECU |
