Legend Tuned · Chip Tuning
BMW 1 Series (E81/E82/E87/E88) 120d (N47) 177 HP Chip Tuning
- 2004–2011
- Diesel
- 177 HP · 350 Nm
- ECU: Bosch EDC17C06 / EDC17C41
Target with Legend Tuned Stage 1: 215 HP / 420 Nm; with Stage 2: 235 HP / 450 Nm. The original software is backed up, the calibration is tailored to the car, and the result is verified by datalog.
Legend Tuned figures
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.
- Power · Stage 1
- Torque · Stage 1
- Power · Stock
- Torque · Stock
Technical figures
| Value | Stock | Stage 1 | Stage 2 |
|---|---|---|---|
| Power | 177 HP | 215 HP | 235 HP |
| Power (kW) | 130 kW | 158 kW | 173 kW |
| Torque | 350 Nm | 420 Nm | 450 Nm |
| Power gain | — | +38 HP (+21%) | +58 HP (+33%) |
| Torque gain | — | +70 Nm (+20%) | +100 Nm (+29%) |
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 · 8 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.
- DPF/FAP Delete A motorsport-focused software solution for the faults, power loss and limp mode caused by a clogged diesel particulate filter (DPF/FAP).
- EGR Delete A software solution for the smoke, power loss and check-engine light caused by a carboned-up, failing EGR valve.
- Swirl Flap Delete A physical delete and software solution against the risk of the swirl flaps in the diesel intake manifold breaking or carboning up.
Legal notice: Software for emission systems (catalytic converter, DPF/FAP, OPF, EGR, AdBlue/SCR, etc.) is intended solely for track / motorsport and closed-course use. Driving vehicles with these systems disabled on public roads, and presenting them for TÜVTÜRK inspection, may be against regulations. On request, the original software can be restored.
Driving & Sound Effects
Make yourself heard and be first off the line.
Transmission (TCU) Software
Faster shifts, sharper response, proper torque management.
Fault & Function Solutions
Permanent software fixes for annoying faults.
- Fault Code Deactivation Software that permanently disables unnecessary fault codes in the ECU for systems that have been removed or are no longer used.
- Permanent Start-Stop Delete A solution that permanently disables the start-stop system that switches itself on at every start, or makes it remember your last setting.
- MAF/Air Flow Meter Delete Software that lets the ECU run on a calculated air model instead of a faulty or problematic MAF (mass air flow) sensor.
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 235 HP / 450 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.
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Book
Tell us about your car and your goals; we'll plan the day and time together.
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Analysis & backup
Fault memory is read, the ECU is identified and the original software is archived.
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Legend Tuned software
Calibration tailored to the car (Stage 1: ~1–2 hours).
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Test & handover
Verified with a road test + datalog, then handed over with a walkthrough of what was done.
BMW 1 Serisi (E81/E82/E87/E88)
Other engines in the same generation
- Petrol 116i (N45) 115 → 128 HP +13
- Petrol 116i (N43) 122 → 135 HP +13
- Petrol 118i (N46) 129 → 145 HP +16
- Petrol 118i (N43) 143 → 155 HP +12
- Petrol 120i (N46) 150 → 165 HP +15
- Petrol 120i (N43) 170 → 185 HP +15
- Petrol 125i (N52) 218 → 250 HP +32
- Petrol 130i (N52) 265 → 285 HP +20
- Petrol 135i (N54) 306 → 362 HP +56
- Petrol 135i (N55) 306 → 365 HP +59
- Petrol 1M Coupé (N54) 340 → 410 HP +70
- Diesel 116d (N47) 116 → 180 HP +64
- Diesel 118d (M47) 122 → 155 HP +33
- Diesel 118d (N47) 143 → 180 HP +37
- Diesel 120d (M47) 163 → 200 HP +37
- Diesel 123d (N47) 204 → 245 HP +41
Other 1 Series generations
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