BMW M3 E90
Etuners stage 2 tune and upgraded cat back exhaust .
Impressive gains of approx 20kw at wheels throughout the entire rev range with a big improvement torque .
- Stage 2 ECU remap
- Upgraded full exhaust
- Removal of stock torque limitations.
- Increasing the maximum speed limiter for race use.
- Increasing the rev limiter to gain more power at high rpm.
- Maximum power: 246 kW (198 kw measured stock), gains 48 kW