Catalog/ Cars/ Renault/ Megane

Renault Megane RS 1.8T

Name: Renault Megane RS 1.8T chip tuning
Brand: Renault
Price: 100.00 EUR
Availability: InStock

IV Facelift (03/2021–2024) · 300 hp

Stage 1

Stage 2

E85

E85 + Stage 1

	Original	After tuning	Diff
Power hp	300	320	+20
Torque Nm	390	440	+50

Power gain

+7%

Torque gain

+13%

Ready to feel these +20 hp on the road?

Get your ready-to-flash Stage 1 file for the Renault Megane

Order tuning file →

Stage 1 file from €100

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 tuning	Diff
Power hp	300	330	+30
Torque Nm	390	460	+70

Power gain

+10%

Torque gain

+18%

Ready to feel these +30 hp on the road?

Get your ready-to-flash Stage 2 file for the Renault Megane

Order tuning file →

Stage 2 file from €100

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 2

PowerTorqueStock

	Original	After E85	Diff
Power hp	300	310	+10
Torque Nm	390	405	+15

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 €2 053 a year at the pump

Get your E85 adaptation file for the Renault Megane

Order tuning file →

File from €100

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

Fuel cost — E85 vs petrol −46%

Petrol · 100 km

~~14.0 L~~ · €29.72

E85 · 100 km

17.6 L · €16.04

You save ≈ €13.69 every 100 km — about €2 053 a year (over 15 000 km)

E85 uses ≈ +26% 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 Renault Megane, calculateur d'économies par département →

	Original	After E85 + Stage 1	Diff
Power hp	300	340	+40
Torque Nm	390	465	+75

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.

+40 hp and €2 053/year saved — both

Get your E85 + Stage 1 file for the Renault Megane

Order tuning file →

File from €100

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

Fuel cost — E85 vs petrol −46%

Petrol · 100 km

~~14.0 L~~ · €29.72

E85 · 100 km

17.6 L · €16.04

You save ≈ €13.69 every 100 km — about €2 053 a year (over 15 000 km)

E85 uses ≈ +26% 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 Renault Megane, calculateur d'économies par département →

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