Vauxhall Zafira (B) - 2005 - 2011 1.6i 16v 105hp Stage 1 Chip Tuning · ECU Remap
Catalog reference — not a measured result for this vehicle.
Catalog reference: power 105 → 115 bhp, difference +10 bhp (10%); torque 150 → 165 Nm. Actual results depend on vehicle condition and measurement.
Figures are typical ranges; exact results depend on the vehicle's hardware and dyno measurement.
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Vauxhall Zafira (B) - 2005 - 2011 1.6i 16v 105hp
Book an appointment Find a centreReversible: Yes, the original software is kept
Vauxhall Zafira (B) - 2005 - 2011 1.6i 16v 105hp — Stage 1 Remap
Stage 1 re-calibrates the ECU software — boost, fuelling and ignition maps — within the factory hardware's safe tolerances. No hardware changes are required.
Vauxhall Zafira 1.6i Stage 1: all generations →
Stage 1 Remap
Software that optimises the engine's power and torque maps within safe limits.
Stage 2 Remap
Advanced software matched to hardware upgrades such as a sport exhaust or induction kit.
Pop & Bang
Software that creates exhaust crackle on lift-off.
Speed Limiter (Vmax) Removal
Removing the factory top-speed limiter from the software.
DTC / Fault Code Removal
Switching off selected diagnostic trouble codes (DTC) in the ECU software.
Where can this be done near you?
GP Power ECU applies the software at its workshop in Hukou, Hsinchu, using EcuPrime-developed files; workshops can also order the file directly.
About the naturally aspirated petrol engine
This vehicle uses a naturally aspirated petrol engine, without a turbo or supercharger. The amount of air it can draw in is physically limited; power depends mainly on displacement, revs and the intake and exhaust design.
How a Stage 1 remap works on the Vauxhall Zafira B 1.6i 16v 105hp
On naturally aspirated engines the gain from a Stage 1 remap is limited compared with turbo engines. Ignition timing, fuel maps, throttle response and, where useful, the rev limit are optimised for a livelier response and a smoother power curve. Bigger gains need hardware changes such as intake, exhaust or camshafts.
Pre-remap checklist
- Spark plugs, coils and fuel quality.
- Air filter, throttle body and intake leaks.
- Lambda probe and catalytic converter condition.
- Engine compression and oil consumption (at high mileage).
Expectations on naturally aspirated engines should be realistic; catalogue figures are a typical range.
This section is based on GP Power ECU workshop experience; the power and torque figures come from the catalogue measurement above.
Vauxhall Zafira — Power Calculator
| Engine | Power | Gain |
|---|---|---|
| 1.6 Turbo 150hp | 150 → 205 bhp | +55 bhp |
| 1.6i 16v 115hp | 115 → 125 bhp | +10 bhp |
| 1.7 CDTi 110hp | 110 → 150 bhp | +40 bhp |
| 1.7 CDTi 125hp | 125 → 150 bhp | +25 bhp |
| 1.8i 16v 140hp | 140 → 155 bhp | +15 bhp |
| 1.9 CDTi 100hp | 100 → 150 bhp | +50 bhp |
| 1.9 CDTi 120hp | 120 → 150 bhp | +30 bhp |
| 1.9 CDTi 150hp | 150 → 190 bhp | +40 bhp |
| 2.0 Turbo OPC 200hp | 200 → 240 bhp | +40 bhp |
| 2.0 Turbo OPC 240hp | 240 → 275 bhp | +35 bhp |
| 2.2i 16v 150hp | 150 → 165 bhp | +15 bhp |