BMW 3 Series · Stage 1

BMW 318i Stage 1 Remap

Name: BMW 318i Stage 1 Remap
Brand: BMW

On BMW 318i 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 318i chip tuning add?

It depends on the generation and the stock output. 318i engines with 118–156 bhp reach 131–260 bhp with a Stage 1 remap; the largest gain is +104 bhp (G2x 318i 156hp). Pick your version in the table below.

Book an appointment BMW 3 Series: all engines & Stage 1

BMW 318i: Stage 1 figures by generation and year

Year / chassis: G2x - 2019+

Engine	Power	Torque	Gain
BMW 3 Series 318i 156hp	156 → 260 bhp	250 → 420 Nm	+104 bhp

Year / chassis: G20 LCI - 2022+

Engine	Power	Torque	Gain
BMW 3 Series 318i 156hp	156 → 187 bhp	250 → 313 Nm	+31 bhp

Year / chassis: F3x LCI - 06 / 2015 - 2019

Engine	Power	Torque	Gain
BMW 3 Series 318i (1500cc) 136hp	136 → 165 bhp	220 → 300 Nm	+29 bhp

Year / chassis: E90/E91 - 2010 - 2011

Engine	Power	Torque	Gain
BMW 3 Series 318i 143hp	143 → 157 bhp	190 → 216 Nm	+14 bhp

Year / chassis: E90/E91 - 2005 - 2010

Engine	Power	Torque	Gain
BMW 3 Series 318i 143hp	143 → 157 bhp	190 → 216 Nm	+14 bhp

Year / chassis: E46 - 1998 - 2005

Engine	Power	Torque	Gain
BMW 3 Series 318i 118hp	118 → 131 bhp	180 → 200 Nm	+13 bhp
BMW 3 Series 318i 136hp	136 → 148 bhp	180 → 195 Nm	+12 bhp
BMW 3 Series 318i 143hp	143 → 156 bhp	200 → 220 Nm	+13 bhp

Frequently asked questions

How much bhp does BMW 318i chip tuning add?

It depends on the generation and the stock output. 318i engines with 118–156 bhp reach 131–260 bhp with a Stage 1 remap; the largest gain is +104 bhp (G2x 318i 156hp). Pick your version in the table below.

What is the difference between Stage 1 and Stage 2 on the BMW 318i?

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.