Vauxhall Astra (H) 2004-2010 2.0T 168bhp remap figures
The Vauxhall Astra 2.0T 168bhp (2004-2010) is a petrol 2.0L model making 168bhp and 250Nm as standard. After a Stage 2 ECU remap we expect 241bhp and 325Nm - up to 73bhp and 75Nm more than stock.
Choose your map
Stage 2 remap figures
Stage 2 builds on Stage 1 with supporting hardware - typically a freer-flowing intake and exhaust or downpipe - and a remap written around those parts. Stage 2 is intended for off-road or competition use.
| Stock | Vanguard expected | Expected gain, up to | |
|---|---|---|---|
| Power | 168 bhp | 241 bhp | +73 bhp |
| Torque | 250 Nm | 325 Nm | +75 Nm |
All maps at a glance
| Map | Power | Torque | Expected gain, up to |
|---|---|---|---|
| Stock | 168 bhp | 250 Nm | |
| Stage 2Extra power with supporting parts | 241 bhp | 325 Nm | +73 bhp +75 Nm |
Who is the Stage 2 map for?
- Owners who have fitted, or plan to fit, supporting parts such as a freer-flowing intake and exhaust.
- Enthusiast, track and competition cars: Stage 2 is intended for off-road or competition use.
- Drivers who accept that a bigger gain means more of the car has to be checked and prepared first.
What Stage 2 needs
Stage 2 is written around supporting hardware. For an engine like this one that is typically a freer-flowing intake and a less restrictive exhaust, with the engine in good mechanical order. We confirm the exact parts for your car before any work starts.
- A diagnostic check and a read of your ECU come first.
- We look at the condition of the parts that will carry the extra power before we quote.
- Stage 2 is intended for off-road or competition use.
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.
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 2 questions
How much power does the Stage 2 map give the Vauxhall Astra 2.0T 168bhp?
We expect 241bhp and 325Nm against 168bhp and 250Nm as standard: up to +73bhp and +75Nm. These are expected figures, and we confirm what is achievable on your own car after a diagnostic check.
What does a Stage 2 remap need on the Vauxhall Astra 2.0T 168bhp?
Stage 2 assumes supporting hardware. For an engine like this that is typically a freer-flowing intake and a less restrictive exhaust, with the engine in good mechanical order. We confirm the exact parts for your car before any work starts.
Is Stage 2 for road use?
Stage 2 is intended for off-road or competition use. Tell us how the car is used and we will explain what we can and cannot do for it.
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
- 1.6 16v Turbo 177bhp 2004-2010
- 2.0T 197bhp 2004-2010
- 1.8 VVT 138bhp 2004-2010
- 1.6 104bhp 2004-2010
- 2.0T VXR 236bhp 2004-2010
- 1.4 88bhp 2004-2010
All petrol Astra (H) variants · Astra (H) 2004-2010 overview · All Vauxhall figures