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Volkswagen Jetta 1.4 TSi

Name: Volkswagen Jetta 1.4 TSi chip tuning
Brand: Volkswagen
Price: 50.00 EUR
Availability: InStock

V (09/2005–2010) · 140 hp

Stage 1

E85

E85 + Stage 1

	Original	After tuning	Diff
Power hp	140	200	+60
Torque Nm	220	300	+80

Power gain

+43%

Torque gain

+36%

Ready to feel these +60 hp on the road?

Get your ready-to-flash Stage 1 file for the Volkswagen Jetta

Order tuning file →

File from €50

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

Power graph / Stage 1

PowerTorqueStock

	Original	After E85	Diff
Power hp	140	145	+5
Torque Nm	220	230	+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 €1 008 a year at the pump

Get your E85 adaptation file for the Volkswagen Jetta

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

~~6.5 L~~ · €14.16

E85 · 100 km

8.1 L · €7.44

You save ≈ €6.72 every 100 km — about €1 008 a year (over 15 000 km)

E85 uses ≈ +25% more litres, but the pump price (€0.914/L vs €2.168/L, France average on October 13, 2026) more than makes up for it.

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

	Original	After E85 + Stage 1	Diff
Power hp	140	210	+70
Torque Nm	220	325	+105

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 €1 008/year saved — both

Get your E85 + Stage 1 file for the Volkswagen Jetta

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

~~6.5 L~~ · €14.16

E85 · 100 km

8.1 L · €7.44

You save ≈ €6.72 every 100 km — about €1 008 a year (over 15 000 km)

E85 uses ≈ +25% more litres, but the pump price (€0.914/L vs €2.168/L, France average on October 13, 2026) more than makes up for it.

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