SEAT Leon (1P) 2005-2012 1.8 TSI 157bhp Stage 1 Eco remap figures

Who is the Stage 1 Eco map for?

• Drivers who want a quicker, more responsive car, tuned with economy in mind.
• Daily drivers who want strong mid-range pull without giving up efficiency.
• Anyone who would otherwise take full Stage 1 but cares what each tank costs.

How Stage 1 Eco compares with Stage 1

Full Stage 1 on this SEAT Leon is expected to give 215bhp and 345Nm (+58bhp, +95Nm). The Stage 1 Eco keeps about 76% of that power gain and 92% of the torque gain, so you get 201bhp and 337Nm: 14bhp less and 8Nm less than Stage 1, with the map shaped for efficient, relaxed driving, so it suits you if you want the pull and care about running costs. Both sit above the standard 157bhp and 250Nm.

What this means for your Leon

Turbocharged petrol engines respond well to calibration changes: boost and timing are the main levers, and the result is a flatter, stronger torque curve as well as a higher peak.

This car is listed with a Bosch MED17.5 engine control unit. Older engine management is simpler to work with, but age matters: worn sensors, leaks and tired components can hold back what a remap delivers, which is why we run a diagnostic check first.

We remap at our Belgrave Gate workshop in Leicester, or at your home or work within 30 miles, and every job starts with a diagnostic check.

Please note: these are expected figures, not guarantees. Real results vary with the condition of the vehicle, the ECU software version, fuel quality and the hardware fitted. Some options - including Stage 2 and anything that needs extra hardware - are for off-road or competition use only. We check every vehicle first and confirm what is achievable before any work starts.

Figures reviewed 22 October 2026.