Vauxhall Astra 1.4 Turbo Stage 1 Remap
On Vauxhall Astra 1.4 Turbo turbo petrol engines a Stage 1 remap recalibrates the boost pressure, ignition timing, fuelling and torque limiter maps. No hardware is changed and the original software is backed up. The same engine is sold with different stock outputs across generations, so the gain depends on your version.
It depends on the generation and the stock output. 1.4 Turbo engines with 120–140 bhp reach 160 bhp with a Stage 1 remap; the largest gain is +40 bhp (1.4 Turbo 120hp). Pick your version in the table below.
Vauxhall Astra 1.4 Turbo: Stage 1 figures by generation and year
Year / chassis: 2009 - 2015
| Engine | Power | Torque | Gain |
|---|---|---|---|
| Vauxhall Astra 1.4 Turbo 120hp | 120 → 160 bhp | 200 → 250 Nm | +40 bhp |
| Vauxhall Astra 1.4 Turbo 140hp | 140 → 160 bhp | 200 → 250 Nm | +20 bhp |