Citroen Grand C4 SpaceTourer 2018> 1.2 PureTech 129bhp remap figures
The Citroen Grand C4 SpaceTourer 1.2 PureTech 129bhp (2018>) is a petrol 1.2L model making 129bhp and 231Nm as standard. After a Stage 1 ECU remap we expect 160bhp and 276Nm - up to 31bhp and 45Nm more than stock.
Choose your map
Stage 1 remap figures
A Stage 1 remap is a software-only change to the ECU on an otherwise standard car. It needs no extra parts, which makes it the usual starting point.
| Stock | Vanguard expected | Expected gain, up to | |
|---|---|---|---|
| Power | 129 bhp | 160 bhp | +31 bhp |
| Torque | 231 Nm | 276 Nm | +45 Nm |
All maps at a glance
| Map | Power | Torque | Expected gain, up to |
|---|---|---|---|
| Stock | 129 bhp | 231 Nm | |
| Stage 1Maximum software-only performance | 160 bhp | 276 Nm | +31 bhp +45 Nm |
| Stage 1 EcoPerformance with economy in mind | 152 bhp | 272 Nm | +23 bhp +41 Nm |
| Eco mapEconomy first | 150 bhp | 270 Nm | +21 bhp +39 Nm |
Who is the Stage 1 map for?
- Drivers who want a sharper throttle and a small, honest gain from software alone.
- Owners who would rather keep the car standard in every other way.
- Anyone who wants the fullest software-only map for this engine, accepting that the gain is modest without a turbocharger.
What this means for your Grand C4 SpaceTourer
Without a turbocharger the improvement comes from ignition, fuelling and throttle mapping rather than boost, so expect a smaller but still noticeable change in response.
Engine management is by a Valeo VD56 unit. Newer ECUs often protect their software, so we read the exact unit and version on the car before confirming the figures on this page.
We remap at our Belgrave Gate workshop in Leicester, or at your home or work within 30 miles, and every job starts with a diagnostic check.
Please note: these are expected figures, not guarantees. Real results vary with the condition of the vehicle, the ECU software version, fuel quality and the hardware fitted. Some options - including Stage 2 and anything that needs extra hardware - are for off-road or competition use only. We check every vehicle first and confirm what is achievable before any work starts.
Figures reviewed 22 October 2026.
Stage 1 questions
How much power does the Stage 1 map give the Citroen Grand C4 SpaceTourer 1.2 PureTech 129bhp?
We expect 160bhp and 276Nm against 129bhp and 231Nm as standard: up to +31bhp and +45Nm. These are expected figures, and we confirm what is achievable on your own car after a diagnostic check.
Does a Stage 1 remap need any extra parts on the Citroen Grand C4 SpaceTourer 1.2 PureTech 129bhp?
No. Stage 1 is a software-only change to the ECU on an otherwise standard car.
Is there a gentler map than Stage 1 for this engine?
Yes, two. Stage 1 Eco is performance with economy in mind: 152bhp and 272Nm expected. The Eco map is economy first: 150bhp and 270Nm. Both still sit above the standard 129bhp and 231Nm.
Do I need to tell my insurer about a remap?
Yes. A remap is a modification, so you should declare it to your insurer.
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