Legend Tuned · Chip Tuning

BMW 3 Series (F30/F31/F34) 335d xDrive (N57) 313 HP Chip Tuning

  • 2012–2019
  • Diesel
  • 313 HP · 630 Nm
  • ECU: Bosch EDC17CP45

Target with Legend Tuned Stage 1: 365 HP / 710 Nm; with Stage 2: 390 HP / 750 Nm. The original software is backed up, the calibration is tailored to the car, and the result is verified by datalog.

Legend Tuned figures

Stage 1
Power +52 HP +17%
365 HP Stock 313 HP · 230 → 268 kW
Stock
313 HP
Stage 1
365 HP
Torque +80 Nm +13%
710 Nm Stock 630 Nm
Stock
630 Nm
Stage 1
710 Nm

Figures are examples/estimates and may vary with the car's mileage, maintenance condition, fuel quality and hardware. Exact results are determined by dyno/datalog.

Power & torque curve

Stock vs Stage comparison

A representative power and torque curve with a technical table of all figures. Hover over the chart to see values by rpm.

Technical figures

BMW 3 Series (F30/F31/F34) 335d xDrive (N57) 313 HP — stock and Stage figures
Value Stock Stage 1 Stage 2
Power313 HP365 HP390 HP
Power (kW)230 kW268 kW287 kW
Torque630 Nm710 Nm750 Nm
Power gain—+52 HP (+17%)+77 HP (+25%)
Torque gain—+80 Nm (+13%)+120 Nm (+19%)
Vehicle
BMW 3 Series (F30/F31/F34)
Engines
335d xDrive (N57)
Years
2012–2019
Fuel
Diesel
ECU
Bosch EDC17CP45

Figures are examples/estimates and may vary with the car's mileage, maintenance condition, fuel quality and hardware. Exact results are determined by dyno/datalog.

Custom software · 9 options

Custom software options for this engine

Legend Tuned functions suitable for this engine, which can be applied in the same session as Stage software or on their own.

Emission Systems

Emission system solutions for track and motorsport projects.

02

Stage 2 hardware, peace of mind and process

Stage 2 requirements

Stage 2 ready with the Custom Sport Filter Kit

At Stage 2, the engine's breathing is freed up with hardware, and the software is written to match that hardware. The target for this engine is 390 HP / 750 Nm.

  • Air intakeThe made-to-measure Legend Custom Sport Filter Kit or an intake suited to the car.
  • Intercooler & boostA vehicle-specific intercooler / blow-off valve to keep temperatures stable under sustained load.
  • Silicone boost hosesHoses and pipes that withstand the higher pressure.
  • Health checkIgnition, fuel system and clutch checked for this power level; the job takes ~4–8 hours (depending on parts fitted).

Included every time

Power with peace of mind

  • Original software backup — the factory software is read and archived before the job.
  • Reversal — the car can be returned to its original software whenever you ask.
  • Datalog check — boost pressure, ignition and air/fuel ratio are recorded and checked on a road test.
  • Vehicle-specific calibration — not an off-the-shelf file; tuned to the engine, hardware and fuel quality.
  • Pre-tune diagnostics — fault memory is read and engine health is checked before the software.
  1. Book

    Tell us about your car and your goals; we'll plan the day and time together.

  2. Analysis & backup

    Fault memory is read, the ECU is identified and the original software is archived.

  3. Legend Tuned software

    Calibration tailored to the car (Stage 1: ~1–2 hours).

  4. Test & handover

    Verified with a road test + datalog, then handed over with a walkthrough of what was done.

BMW 3 Series (F30/F31/F34)

Other engines in the same generation

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Stage 1 365 HP +52
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