Legend Tuned · Chip Tuning
BMW 1 Series (E81/E82/E87/E88) 120i (N46) 150 HP Chip Tuning
- 2004–2011
- Petrol
- 150 HP · 200 Nm
- ECU: Bosch ME9.2
Target with Legend Tuned Stage 1: 165 HP / 220 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 1Figures 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 1 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 |
|---|---|---|
| Power | 150 HP | 165 HP |
| Power (kW) | 110 kW | 121 kW |
| Torque | 200 Nm | 220 Nm |
| Power gain | — | +15 HP (+10%) |
| Torque gain | — | +20 Nm (+10%) |
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 · 7 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.
- Catalytic Converter Delete (Cat Off) ECU software that prevents the check-engine light and power loss on cars with a removed or replaced catalytic converter.
- Rear Lambda/O2 Sensor Delete Software that turns off monitoring of the post-cat (rear) oxygen sensor to prevent the check-engine light on downpipe and sports cat setups.
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.
Stage 2 hardware, peace of mind and process
After Stage 1
Stage 2 is not listed for this engine
There's no meaningful Stage 2 figure for this engine; most of the gain comes with Stage 1 software. For livelier throttle response and a deeper intake sound, you can complement Stage 1 with the Custom Sport Filter Kit.
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 (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 120d (N47) 177 → 215 HP +38
- Diesel 123d (N47) 204 → 245 HP +41
Other 1 Series generations
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