
Seat · Stage 1
SEAT Leon 125hp Stage 1
A mobile Stage 1 calibration by MTechTuning, with dealer-level diagnostics before and after tuning.
Published vehicle figures
Stock
125hp
200Nm
Stage 1
155hp
270Nm
Difference
+30hp
+70Nm
Figures published for this vehicle. Results vary with model year, software, fuel and condition, so we confirm what suits your car before quoting.
SEAT Leon 125hp Stage 1
This SEAT Leon went from 125hp and 200Nm to 155hp and 270Nm with our Stage 1 engine tune, a gain of 30hp and 70Nm.
Add-ons on this Leon
- Speed limiter solution
- Neutral rev limiter removal
- Advanced dealer-level diagnostics
Do you come to me?
Yes. We are fully mobile and travel to your home or workplace across Bristol, North Somerset, Somerset and South Wales, at no extra charge.
About this job
The results
Power went from 125hp to 155hp, an increase of 30hp or around 24%.
Torque rose from 200Nm to 270Nm (+70Nm), which is what you feel most in everyday driving: stronger pull from low revs and easier overtaking.
What the work involved
A Stage 1 remap is a software calibration for an otherwise standard car. We refine parameters such as boost, fuelling, ignition timing and torque limits within safe margins, so it pulls harder through the mid-range without any hardware changes.
How we carried it out
- Diagnostic scan for stored faults before any work
- Stabilised power supply connected while programming
- Original software read and saved, so the car can be returned to standard
- Calibration written, then the car checked again afterwards
Thinking about the same for your Seat?
We come to you from our Weston-super-Mare base, across Bristol, Somerset, Gloucestershire, Wiltshire, South Wales and parts of Devon and Dorset. Results depend on the exact car, so we confirm what suits yours before quoting.

- Dealer-level diagnostics before and after
- Fully mobile, at home or work
- Lifetime software warranty and support
- 14-day money-back guarantee
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