NVM’s Stage 1+ package for the N57D30T1 engine is designed to deliver strong, reliable gains from a stock vehicle, with all supporting hardware included and tuned live on the dyno.
Suitable for the BMW 335d and BMW 435d, this package produces a targeted 380–400bhp and 720–780Nm, depending on soot levels and carbon build-up.
How Stage 1+ Improves Your N57
Stage 1+ goes beyond a simple ECU remap by combining software tuning with key supporting upgrades. On the N57 engine, this means:
- Better intake airflow through a high-performance panel filter
- Cooler air temperatures under load thanks to a large NVM intercooler
- Dyno-tuned ECU mapping to safely increase power and torque
- Optional XHP gearbox tuning for faster, smoother shifts
By addressing airflow, cooling, and software together, the engine can produce higher, more consistent torque without stressing stock components.
Performance & Driving Feel
The N57 responds extremely well to a properly supported Stage 1+ tune. With this package you can expect:
- Significant torque increase across the mid-range
- Stronger in-gear acceleration
- Improved throttle response
- More consistent power delivery under load
Actual output will vary depending on engine condition, soot content, and carbon build-up.
Cooling & Airflow Upgrades
- NVM Panel Filter
- NVM Large Intercooler
Together, these components allow the ECU calibration to safely optimise boost and fuelling.
If you’re researching BMW 335d Stage 1+ tuning or BMW 435d N57 upgrades, this package offers a balanced approach with proper supporting hardware and live dyno calibration.
