Performance Chip Tuning Seat Leon 1M (until 2005)
5 engines · +12 to +22 hp
Seat Leon 1M: 5 engines — 2 gas and 3 diesel. Gains run from +12 to +22 hp, with up to +38 Nm more torque. GAN GA+ from 189 EUR.
All Seat Leon 1M engines: exact gains
STOCK output, output with GAN, gain and price for each module. Diesel and gasoline engines are listed separately.
| Engine | STOCK → with GAN | Gain | Tuners 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 → | |
| Gasoline · 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 gets its own performance chip: GAN GT / GTL or GAN GA / GA+. Prices are per performance chip and include the current discount.
Not sure which engine you have?
The badge alone isn’t enough: in this generation, the same engine came with different horsepower ratings, each with its own calibration. Check the horsepower in your owner’s manual or vehicle documents and find the matching row.
Same badge, different factory power outputs in this generation:
Seat Leon 1M tune: what changes
More power and torque with no ECU flash and no new parts – the module only adjusts the engine sensor signals. Your factory warranty is preserved: the ECU software is never changed, and the module can be removed at any time.
- Bluetoothswitch modes from your phone
- 18 mapsto fine-tune your engine
- 15 minutesplug-and-play install
- IP67water and dust protection
- +22 hpbest in this generation
1.8 TSI 180 hp → 202 hp. The other engines gain +12 hp and up; check the table for each one.
- +38 Nmfor diesels
Diesels gain mostly torque: +29 to +38 Nm for towing and hauling.
- GAN APPpower control via smartphone
Switch between SPORT, DYNAMIC, ECO and STOCK in the GAN app.
- 50 daystest drive
Enhanced performance or your money back, excluding shipping costs.
Seat Leon 1M tuning FAQ
Which tuner do I need for my Seat Leon 1M?
Find your engine in the table above – each row shows the tuner and the price.
Is a tuning module the same as a Stage 1 tune?
Not quite. Stage 1 usually means an ECU flash tune 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.