Vauxhall Astra (J) 2009-2016 1.4 16v Turbo 118bhp remap figures
Stock, this 2009-2016 Vauxhall Astra petrol (1.4L) produces 118bhp and 199Nm. Our expected figures for a Stage 1 remap are 160bhp and 249Nm, an expected gain of up to 42bhp and 50Nm.
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 | 118 bhp | 160 bhp | +42 bhp |
| Torque | 199 Nm | 249 Nm | +50 Nm |
All maps at a glance
| Map | Power | Torque | Expected gain, up to |
|---|---|---|---|
| Stock | 118 bhp | 199 Nm | |
| Stage 1Maximum software-only performance | 160 bhp | 249 Nm | +42 bhp +50 Nm |
| Stage 1 EcoPerformance with economy in mind | 150 bhp | 245 Nm | +32 bhp +46 Nm |
| Eco mapEconomy first | 146 bhp | 243 Nm | +28 bhp +44 Nm |
Who is the Stage 1 map for?
- Drivers who want a noticeably quicker car from a software-only change, with no new parts.
- Daily drivers who want stronger mid-range pull and a sharper throttle.
- Anyone who wants the biggest gain we list without fitting hardware.
What this means for your Astra
On a turbocharged petrol engine a remap adjusts boost, ignition timing and fuelling together, so both power and mid-range torque rise and the car pulls harder out of corners and junctions.
The ECU recorded for this variant is a Delco E78. We read the ECU on your car and compare it with the software listed here before any work starts, so you know what to expect before you commit.
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 Vauxhall Astra 1.4 16v Turbo 118bhp?
We expect 160bhp and 249Nm against 118bhp and 199Nm as standard: up to +42bhp and +50Nm. 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 Vauxhall Astra 1.4 16v Turbo 118bhp?
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: 150bhp and 245Nm expected. The Eco map is economy first: 146bhp and 243Nm. Both still sit above the standard 118bhp and 199Nm.
Do I need to tell my insurer about a remap?
Yes. A remap is a modification, so you should declare it to your insurer.
More Vauxhall Astra figures
Other petrol variants
- 1.4 16v Turbo 123bhp 2015>
- 1.6 16v VVT 113bhp 2009-2016
- 1.4 16v VVT 99bhp 2009-2016
- 1.4 16v Turbo 138bhp 2009-2016
- 1.4 16v VVT 86bhp 2009-2016
- 1.6 16v Turbo 177bhp 2009-2016
- 1.6 16v Turbo 197bhp 2013>
- 2.0 Turbo VXR 276bhp 2009-2016
All petrol Astra (J) variants · Astra (J) 2009-2016 overview · All Vauxhall figures