Caterham Seven Seven 165 / R / S - 0.66 T

Name: Caterham Seven Seven 165 / R / S - 0.66 T chip tuning
Brand: Caterham
Price: 80.00 EUR
Availability: InStock

2014–present · 81 hp

Stage 1

E85

E85 + Stage 1

	Original	After tuning	Diff
Power hp	81	90	+9
Torque Nm	107	125	+18

Power gain

+11%

Torque gain

+17%

Ready to feel these +9 hp on the road?

Get your ready-to-flash Stage 1 file for the Caterham Seven

Order tuning file →

Stage 1 file from €80

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	81	85	+4
Torque Nm	107	110	+3

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 €559 a year at the pump

Get your E85 adaptation file for the Caterham Seven

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

~~3.8 L~~ · €7.93

E85 · 100 km

4.6 L · €4.2

You save ≈ €3.73 every 100 km — about €559 a year (over 15 000 km)

E85 uses ≈ +23% more litres, but the pump price (€0.906/L vs €2.098/L, France average on November 3, 2026) more than makes up for it.

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

	Original	After E85 + Stage 1	Diff
Power hp	81	100	+19
Torque Nm	107	135	+28

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.

+19 hp and €559/year saved — both

Get your E85 + Stage 1 file for the Caterham Seven

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

~~3.8 L~~ · €7.93

E85 · 100 km

4.6 L · €4.2

You save ≈ €3.73 every 100 km — about €559 a year (over 15 000 km)

E85 uses ≈ +23% more litres, but the pump price (€0.906/L vs €2.098/L, France average on November 3, 2026) more than makes up for it.

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

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