Catalog/ Cars/ Opel/ Astra

Opel Astra 1.4 T (4cyl)

Name: Opel Astra 1.4 T (4cyl) chip tuning
Brand: Opel
Price: 105.00 EUR
Availability: InStock

K (09/2015–2019) · 125 hp

Stage 1

E85

E85 + Stage 1

	Original	After tuning	Diff
Power hp	125	180	+55
Torque Nm	245	290	+45

Power gain

+44%

Torque gain

+18%

Ready to feel these +55 hp on the road?

Get your ready-to-flash Stage 1 file for the Opel Astra

Order tuning file →

Stage 1 file from €105

Exact price depends on the ECU — confirmed when you upload the file

✓ Original file back-up ✓ Delivered in ~30 min ✓ Support included

Power graph / Stage 1

PowerTorqueStock

	Original	After E85	Diff
Power hp	125	130	+5
Torque Nm	245	255	+10

E85 adaptation (no Stage 1)

Just the fuel switch: the ECU is adapted to run Superéthanol E85 (up to 85% bio-ethanol) with no Stage 1 chip on top. You get a small power bump from ethanol's higher octane (~104 RON) and a much cheaper fill-up. Flex Fuel file: the car still runs on regular petrol whenever you want.

Save €882 a year at the pump

Get your E85 adaptation file for the Opel Astra

Order tuning file →

File from €100

✓ Original file back-up ✓ Delivered in ~30 min ✓ Support included

Fuel cost — E85 vs petrol −47%

Petrol · 100 km

~~5.8 L~~ · €12.38

E85 · 100 km

7.2 L · €6.5

You save ≈ €5.88 every 100 km — about €882 a year (over 15 000 km)

E85 uses ≈ +23% more litres, but the pump price (€0.909/L vs €2.123/L, France average on October 29, 2026) more than makes up for it.

🇫🇷 Version française : conversion éthanol E85 de la Opel Astra, calculateur d'économies par département →

	Original	After E85 + Stage 1	Diff
Power hp	125	195	+70
Torque Nm	245	310	+65

E85 + Stage 1 remap

Chip tuning re-optimised for Superéthanol E85: the ignition and boost maps are calibrated to make full use of ethanol's higher octane (~104 RON). Bigger power and torque gains than either Stage 1 on petrol or E85 adaptation alone, plus the same cheap fill-up.

+70 hp and €882/year saved — both

Get your E85 + Stage 1 file for the Opel Astra

Order tuning file →

File from €100

✓ Original file back-up ✓ Delivered in ~30 min ✓ Support included

Fuel cost — E85 vs petrol −47%

Petrol · 100 km

~~5.8 L~~ · €12.38

E85 · 100 km

7.2 L · €6.5

You save ≈ €5.88 every 100 km — about €882 a year (over 15 000 km)

E85 uses ≈ +23% more litres, but the pump price (€0.909/L vs €2.123/L, France average on October 29, 2026) more than makes up for it.

🇫🇷 Version française : conversion éthanol E85 de la Opel Astra, calculateur d'économies par département →

Original ECU files for Opel Astra Stock (ORI) files of this model · €20 per file →