Chiptuning Seat Leon 1M (until 2005)
5 engines · +12 to +22 hp
Seat Leon 1M: 5 engines — 2 petrol and 3 diesel. The gain is +12 to +22 hp, with up to +38 Nm more torque. GAN GA+ from 189 EUR.
All Seat Leon 1M engines: exact gains
Standard output, output with GAN, the gain and the price for each box. Diesel and petrol engines are listed separately.
| Engine | STOCK → with GAN | Gain | Tuning boxes and prices | |
|---|---|---|---|---|
| Diesel · 3 engines | ||||
| 1.9 TDI150 hp / 320 Nm | +18 hp+38 Nm |
GA — 189 EUR · 168 hp GA+ — 189 EUR · 168 hp |
Select → | |
| 1.9 TDI131 hp / 310 Nm | +16 hp+37 Nm |
GA — 189 EUR · 147 hp GA+ — 189 EUR · 147 hp |
Select → | |
| 1.9 TDI101 hp / 240 Nm | +12 hp+29 Nm |
GA — 189 EUR · 113 hp GA+ — 189 EUR · 113 hp |
Select → | |
| Petrol · 2 engines | ||||
| 1.8 TSI180 hp / 235 Nm | +22 hp+28 Nm |
GA — 189 EUR · 202 hp GA+ — 189 EUR · 202 hp |
Select → | |
| 1.6i105 hp / 148 Nm | +13 hp+18 Nm |
GA — 189 EUR · 118 hp GA+ — 189 EUR · 118 hp |
Select → | |
Each engine has its own tuning box: GAN GT / GTL or GAN GA / GA+. Prices are per box and include the current discount.
Not sure which engine you have?
The badge alone is not enough: in this generation, the same engine designation came in different power outputs, each with its own calibration. Check the power output in your registration document and find the matching row.
Same badge, different factory power outputs in this generation:
Seat Leon 1M remap: what changes
More power and torque without rewriting the ECU or swapping any parts. The GAN box only adjusts the engine sensor signals. Your manufacturer’s warranty is preserved: the ECU software is never changed, and the box can be removed at any time.
- Bluetoothchange modes from your phone
- 18 mapsfine-tuning for your engine
- 15 minutesfitted to the factory connectors
- IP67water and dust protection
- +22 hpbest in this generation
1.8 TSI 180 hp → 202 hp. The other engines gain at least +12 hp; check the table for each one.
- +38 Nmfor diesels
Diesels gain mostly torque: +29 to +38 Nm, which helps with overtaking and towing.
- GAN APPpower control via smartphone
SPORT, DYNAMIC, ECO and STOCK modes in the GAN app.
- 50 daystest drive
Feel the difference or get your money back, excluding delivery costs.
Seat Leon 1M remap: common questions
Which tuning box do I need for the Seat Leon 1M?
Find your engine in the table above – each row shows the box and its price.
Is a tuning module the same as a Stage 1 remap?
Not quite. Stage 1 usually means an ECU remap without replacing any parts. The tuning module also works without replacing parts, but it does not change the ECU software: it adjusts the sensor signals, comes off in about a minute, and the OFF button in the app restores the factory settings.