BMW 1 Series · Stage 1
BMW 120i Stage 1 Remap
On BMW 120i turbo petrol engines a Stage 1 remap recalibrates the boost pressure, ignition timing, fuelling and torque limiter maps. No hardware is changed and the original software is backed up. The same engine is sold with different stock outputs across generations, so the gain depends on your version.
How much bhp does BMW 120i chip tuning add?
It depends on the generation and the stock output. 120i engines with 150–184 bhp reach 165–260 bhp with a Stage 1 remap; the largest gain is +76 bhp (F40 120i (2.0T) 184hp). Pick your version in the table below.
BMW 120i: Stage 1 figures by generation and year
Year / chassis: F40 - 2019+
| Engine | Power | Torque | Gain |
|---|---|---|---|
| BMW 1 Series 120i (1.6T) 177hp | 177 → 220 bhp | 250 → 310 Nm | +43 bhp |
| BMW 1 Series 120i (2.0T) 184hp | 184 → 260 bhp | 290 → 420 Nm | +76 bhp |
| BMW 1 Series 120i (2.0T) 184hp (B48B20B) | 184 → 250 bhp | 290 → 440 Nm | +66 bhp |
Year / chassis: F20 - 2015 - 2018
| Engine | Power | Torque | Gain |
|---|---|---|---|
| BMW 1 Series 120i 177hp (1598cc) | 177 → 220 bhp | 250 → 310 Nm | +43 bhp |
| BMW 1 Series 120i 184hp (1998cc) (B48B20B) | 184 → 250 bhp | 290 → 440 Nm | +66 bhp |
Year / chassis: E87 - 2007 - 2011
| Engine | Power | Torque | Gain |
|---|---|---|---|
| BMW 1 Series 120i 170hp | 170 → 185 bhp | 210 → 230 Nm | +15 bhp |
Year / chassis: E87 - 2004 - 2007
| Engine | Power | Torque | Gain |
|---|---|---|---|
| BMW 1 Series 120i 150hp | 150 → 165 bhp | 200 → 220 Nm | +15 bhp |
Frequently asked questions
How much bhp does BMW 120i chip tuning add?
It depends on the generation and the stock output. 120i engines with 150–184 bhp reach 165–260 bhp with a Stage 1 remap; the largest gain is +76 bhp (F40 120i (2.0T) 184hp). Pick your version in the table below.
What is the difference between Stage 1 and Stage 2 on the BMW 120i?
Stage 1 is software only: no part of the car is changed and the figures in the table apply to this software. Stage 2 is software prepared for hardware changes such as the exhaust, intercooler or intake; the hardware comes first, then the software.
Will chip tuning damage the engine?
No. Values stay inside the safety margin the manufacturer leaves; engine, gearbox and turbo limits are not exceeded. Every file is verified with a road test and data logging. If the car needs maintenance first (worn injectors, blocked filter, weak clutch) we tell you before starting.
Will my fuel consumption go up?
With the same driving style it usually drops, because you hold the same speed at lower revs and less throttle. If you use the extra power, consumption naturally rises. It is down to your right foot.
How long does it take? Do I leave the car?
Most cars take 1–2 hours and you get the car back the same day; no need to leave it. Some models need the ECU removed, which takes longer — we tell you when booking.
Can I go back to stock later?
Yes. The original file is read and archived before any work. We restore the factory software free of charge whenever you ask.