Your Vehicle
Seat Leon 2.0 TFSI 290hp
Technical Specifications
Power and torque increase
Stage 1: software remap only, no mechanical changes, fully reversible. Stage 2: remap combined with downpipe / sports air filter.
Stage 1: file 122 € online + installation 350 € at the workshop (via the OBD port) Book now Stage 2: file 122 € online; at the workshop, ECU writing, mechanical work and parts quoted by the centre Buy the file
Power HP
Torque Nm
Buy the Stage 1 file, pay the installation at the workshop
122 € VAT included (€100 + VAT): the file developed for your engine, paid online
Installation: 350 € network price, the workshop may charge less, paid at the chosen workshop (via the OBD port) · terms
Online you pay only for the file. At the centre you choose, you pay for writing the ECU (the installation shown above).
Buy the Stage 2 file: the centre quotes the workshop part
122 € VAT included (100 € + VAT): the Stage 2 file developed for your engine
Online you pay only for the file. At the centre you pay for writing the ECU, the mechanical work and the parts (for example the downpipe), according to the centre’s quote.
What happens next
- You pay for the file online: development starts straight away.
- The centre calls you the same day and checks how your car is set up.
- It sends you the written quote: parts, fitting and installation of the file, item by item.
- You book the appointment whenever you like, within 12 months, and pay the workshop at the centre.
What a Stage 2 usually needs
It depends on the engine, which is why the workshop part is quoted: the centre looks at your car before writing down a figure. Typically:
- turbo petrol: almost always a sports downpipe, often a larger intercooler;
- diesel: usually a more efficient intercooler and, where needed, a downpipe;
- clutch: assessed when torque rises a lot or it is already worn;
- if the car already has some of these parts, the quote is lower.
Why buy the file now
- Development starts straight away: the job is open and the centre already has your code. On the day of the appointment the final file arrives within 1-2 hours of reading the ECU.
- The file price is settled: 122 €, already paid. The centre’s quote covers only the workshop.
- You have 12 months to book the appointment: get the parts ready calmly.
- Lifetime warranty on the file; the workshop job carries the 2-year legal warranty.
- 31 MasterTuning centres, 27 in Italy: choose the nearest.
The file is non-refundable: development starts straight away at your request. terms
Power Graph · Stage 1
Seat Leon 2.0 TFSI 290hp: da 290 a 365HP
Values for Stage 1 (change the stage from the control above)
Remapping Seat Leon
MasterTuning develops remapping for Seat. La Seat Leon 2.0 TFSI 290hp può passare da 290 HP a 365 HP con un incremento di 75 HP.
The development of each remap is customized by MasterTuning.
- 100% customised files with lifetime warranty
- Reference values for Stage 1: the file is developed on your vehicle and checked in the workshop
- Best performance, within safety margins
- Reduced fuel consumption
ECU Remapping Details Seat Leon 2.0 TFSI 290hp
The Seat Leon 2.0 TFSI 290hp is equipped with a petrol engine that produces 290 HP and 350 Nm of torque in its factory configuration. With MasterTuning's professional ECU remapping, this Seat can achieve 365 HP (+26%) and 470 Nm (+34%).
Our Stage 1 tuning for the Leon 5F MK1 - 2012 - 2017 delivers an impressive gain of +75 HP and +120 Nm, optimizing the petrol engine's performance while maintaining reliability and staying within safe parameters.
The engine code CJX identifies this specific powerplant configuration. The Siemens/Continental Simos 18.1 ECU is professionally recalibrated to unlock hidden potential while preserving engine longevity.
With 290 HP from factory, this Seat Leon is already a performance vehicle. Our remapping extracts even more potential, delivering exhilarating acceleration and enhanced driving dynamics for enthusiasts who demand the best.
Technical Specifications — Seat Leon 2.0 TFSI 290hp
Factory technical data for the Seat Leon 2.0 TFSI 290hp (5F MK1 - 2012 - 2017), used by MasterTuning engineers to develop a remap tailored to this specific powerplant. Figures shown are reference values for Stage 1; the file is developed on your vehicle and checked in the workshop.
| Engine code | CJX |
|---|---|
| ECU / Control unit | Siemens/Continental Simos 18.1 |
| Fuel | Petrol |
| Compression ratio | 9.3 |
| Bore × stroke | 82.5 X 92.8 mm |
| Stock power | 290 HP · 350 Nm |
| Remapped power (Stage 1) | 365 HP (+75) · 470 Nm (+120) |
Don't want to touch the ECU?
Rapid Dimsport add-on modules connect to the engine sensors with original connectors: they fit in a few hours and come off without a trace, leaving the factory software untouched. Useful on a leased car, one still under warranty or one you plan to sell soon. Check which ones fit your Seat Leon.
Frequently Asked Questions - Seat Leon
How much power can I gain from remapping my Seat Leon?
With MasterTuning Stage 1, your Seat Leon 2.0 TFSI 290hp can gain +75 HP (from 290 to 365 HP) and +120 Nm of torque. This represents a 26% increase in power.
Which ECU does the Seat Leon 2.0 TFSI 290hp use?
The Seat Leon 2.0 TFSI 290hp uses the Siemens/Continental Simos 18.1 engine control unit. MasterTuning recalibrates this ECU for Stage 1 and Stage 2.
What is the engine code of the Seat Leon 2.0 TFSI 290hp?
The engine code of the Seat Leon 2.0 TFSI 290hp is CJX. You can find it in the vehicle documents or on the engine plate.
Is ECU remapping safe for the Seat Leon engine?
Yes, MasterTuning's remapping for the Seat Leon 2.0 TFSI 290hp is developed within safe parameters. Each file is developed on your vehicle, checked in the workshop and stays within the mechanical limits of the CJX engine.
Is the Seat ECU remapping reversible?
Absolutely. The original factory calibration of your Seat Leon is always backed up before remapping. The process is 100% reversible at any time.
Will remapping affect my Seat warranty?
ECU remapping may affect your manufacturer warranty. We recommend checking your specific warranty terms. Many of our customers choose to remap after the warranty period or accept this trade-off for the significant performance gains.
Other Remaps You Might Like
Other Engines Seat Leon 5F MK1 - 2012 - 2017
Similar Power Seat
Book your remap or ask for a quote
The file is bought online; at the centre you choose you pay for writing the ECU and, for Stage 2, the mechanical work and the parts.
Online you pay only for the file. At the centre you choose, you pay for writing the ECU (the installation shown above).
Stage 2 is quoted on request: write to us and we will reply with price and timing.
Online you pay only for the file. At the centre you pay for writing the ECU, the mechanical work and the parts (for example the downpipe), according to the centre’s quote.
Request Quote on WhatsAppYour data is safe. No spam, just your quote.
-15% on Stage 1 if you ask for the quote now (valid 7 days)