Vauxhall Astra (H) 2004-2010 2.0T VXR 236bhp remap figures
The Vauxhall Astra 2.0T VXR 236bhp (2004-2010) is a petrol 2.0L model making 236bhp and 320Nm as standard. After a Stage 1 ECU remap we expect 288bhp and 424Nm - up to 52bhp and 104Nm 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 | 236 bhp | 288 bhp | +52 bhp |
| Torque | 320 Nm | 424 Nm | +104 Nm |
All maps at a glance
| Map | Power | Torque | Expected gain, up to |
|---|---|---|---|
| Stock | 236 bhp | 320 Nm | |
| Stage 1Maximum software-only performance | 288 bhp | 424 Nm | +52 bhp +104 Nm |
| Stage 1 EcoPerformance with economy in mind | 275 bhp | 416 Nm | +39 bhp +96 Nm |
| Eco mapEconomy first | 271 bhp | 410 Nm | +35 bhp +90 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
Naturally aspirated petrol engines have no boost to raise, so gains from software alone are more modest than on a turbocharged car and come from fuelling, ignition and throttle response.
This car is listed with a Bosch ME7.6.2 engine control unit. Older engine management is simpler to work with, but age matters: worn sensors, leaks and tired components can hold back what a remap delivers, which is why we run a diagnostic check first.
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 2.0T VXR 236bhp?
We expect 288bhp and 424Nm against 236bhp and 320Nm as standard: up to +52bhp and +104Nm. 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 2.0T VXR 236bhp?
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: 275bhp and 416Nm expected. The Eco map is economy first: 271bhp and 410Nm. Both still sit above the standard 236bhp and 320Nm.
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
- 2.0T 197bhp 2004-2010
- 1.6 16v Turbo 177bhp 2004-2010
- 2.0T 168bhp 2004-2010
- 1.8 VVT 138bhp 2004-2010
- 1.6 104bhp 2004-2010
- 1.4 88bhp 2004-2010
All petrol Astra (H) variants · Astra (H) 2004-2010 overview · All Vauxhall figures