Opel Astra (G) - 1998 - 2004 1.8i 16v 115hp

Real standard and upgraded performance figures for the 1.8i 16v 115hp engine in the Opel Astra (G) - 1998 - 2004.

These are real standard and Stage 1 (and where available, Stage 2) figures for the Opel Astra (G) - 1998 - 2004 1.8i 16v 115hp — not a generic estimate for the model range.

Horsepower (HP)Torque (Nm)
Standard115170
Stage 1125185
Stage 2130192
Make
Opel
Model
Astra
Generation
(G) - 1998 - 2004
Engine
1.8i 16v 115hp
Fuel type
Petrol

Frequently asked questions

Is Stage 1 tuning safe for the Opel Astra (G) - 1998 - 2004 1.8i 16v 115hp?

Yes — Stage 1 for this engine is a software-only remap calibrated to stay within its stock mechanical limits (turbo, clutch, fueling), so no hardware changes are required.

How much more power does the 1.8i 16v 115hp make after tuning?

Standard output is 115 HP / 170 Nm; Stage 1 on this engine typically reaches 125 HP / 185 Nm. Exact results can vary slightly with fuel quality and vehicle condition.

How long does a Opel Astra (G) - 1998 - 2004 1.8i 16v 115hp remap take?

Once your original file is uploaded through the member panel, most requests for this engine are completed within a few hours.

Can the 1.8i 16v 115hp be reverted to its original file?

Yes — we keep the original file on record for the request, so the ECU can be put back to stock at any time.