Citroen C4 Picasso / C4 SpaceTourer · Stage 1

Citroen C4 Picasso / C4 SpaceTourer 1.6 THP Stage 1 Remap

Name: Citroen C4 Picasso / C4 SpaceTourer 1.6 THP Stage 1 Remap
Brand: Citroen

On Citroen C4 Picasso / C4 SpaceTourer 1.6 THP 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 Citroen C4 Picasso / C4 SpaceTourer 1.6 THP chip tuning add?

It depends on the generation and the stock output. 1.6 THP engines with 150–165 bhp reach 185–190 bhp with a Stage 1 remap; the largest gain is +35 bhp (1.6 THP 155hp). Pick your version in the table below.

Book an appointment Citroen C4 Picasso / C4 SpaceTourer: all engines & Stage 1

Citroen C4 Picasso / C4 SpaceTourer 1.6 THP: Stage 1 figures by generation and year

Year / chassis: 2017+

Engine	Power	Torque	Gain
Citroen C4 Picasso / C4 SpaceTourer 1.6 THP 165hp	165 → 190 bhp	240 → 320 Nm	+25 bhp

Year / chassis: 2013 - 2016

Engine	Power	Torque	Gain
Citroen C4 Picasso / C4 SpaceTourer 1.6 THP 155hp	155 → 190 bhp	240 → 300 Nm	+35 bhp

Year / chassis: 2006 - 2013

Engine	Power	Torque	Gain
Citroen C4 Picasso / C4 SpaceTourer 1.6 THP 150hp	150 → 185 bhp	240 → 300 Nm	+35 bhp
Citroen C4 Picasso / C4 SpaceTourer 1.6 THP 155hp	155 → 190 bhp	240 → 300 Nm	+35 bhp

In Taiwan

Where can this be done near you?

GP Power ECU applies the software at its workshop in Hukou, Hsinchu, using EcuPrime-developed files; workshops can also order the file directly.

ENGINE FAMILY

About the PSA / BMW 1.6 THP (Prince)

The 1.6 THP is the turbo petrol engine developed jointly by Peugeot and BMW, used in the Peugeot 207, 308, 3008, RCZ, Citroën DS3, DS4, C4 and Mini Cooper S from 150 to 270 hp.

How a Stage 1 remap works on the Citroen C4 Picasso / C4 SpaceTourer 1.6 THP

Stage 1 recalibrates boost, ignition and fuelling within the limits of the original hardware. The twin-scroll turbo responds quickly and the gain spreads across the rev range. Knock-sensor data and fuel quality are decisive in the calibration.

Pre-remap checklist

Timing chain and tensioner (a known issue on early generations).
Carbon build-up on the intake valves (direct injection).
High-pressure fuel pump and ignition coils.
Oil consumption and the PCV system.

This section is based on GP Power ECU workshop experience; the power and torque figures come from the catalogue measurement above.

Frequently asked questions

How much bhp does Citroen C4 Picasso / C4 SpaceTourer 1.6 THP chip tuning add?

It depends on the generation and the stock output. 1.6 THP engines with 150–165 bhp reach 185–190 bhp with a Stage 1 remap; the largest gain is +35 bhp (1.6 THP 155hp). Pick your version in the table below.

What is the difference between Stage 1 and Stage 2 on the Citroen C4 Picasso / C4 SpaceTourer 1.6 THP?

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.

What is checked on the Citroen C4 Picasso / C4 SpaceTourer 1.6 THP before remapping?

Before working on the PSA / BMW 1.6 THP (Prince) we check: Timing chain and tensioner (a known issue on early generations). Carbon build-up on the intake valves (direct injection). High-pressure fuel pump and ignition coils. Oil consumption and the PCV system. If something needs attention, maintenance comes first; the remap is applied to a healthy engine.