Vauxhall Astra (J) 2009-2016 1.6 16v VVT 113bhp remap figures
Thinking of remapping a Vauxhall Astra 1.6 16v VVT 113bhp? The standard car makes 113bhp and 155Nm; with a Stage 1 remap from our Leicester workshop we expect around 126bhp and 170Nm, up to +13bhp and +15Nm.
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 | 113 bhp | 126 bhp | +13 bhp |
| Torque | 155 Nm | 170 Nm | +15 Nm |
All maps at a glance
| Map | Power | Torque | Expected gain, up to |
|---|---|---|---|
| Stock | 113 bhp | 155 Nm | |
| Stage 1Maximum software-only performance | 126 bhp | 170 Nm | +13 bhp +15 Nm |
| Stage 1 EcoPerformance with economy in mind | 123 bhp | 169 Nm | +10 bhp +14 Nm |
| Eco mapEconomy first | 122 bhp | 168 Nm | +9 bhp +13 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 Astra
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 Delco E83 unit. 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 1.6 16v VVT 113bhp?
We expect 126bhp and 170Nm against 113bhp and 155Nm as standard: up to +13bhp and +15Nm. 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 1.6 16v VVT 113bhp?
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: 123bhp and 169Nm expected. The Eco map is economy first: 122bhp and 168Nm. Both still sit above the standard 113bhp and 155Nm.
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 118bhp 2009-2016
- 1.4 16v Turbo 123bhp 2015>
- 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