Seat Leon 1.2 TSI Stage 1: 105→138hp | DMS Tuned

Seat Leon 1.2 TSI Stage 1: 105→138hp

Seat Leon 1.2 TSI Stage 1: 105hp → 138hp, 175→220Nm. Custom DMS calibration written for your car — not an off-the-shelf file. From €450. Athens + remote.…

Seat Leon Stage 1: 105 hp → 138 hp

Factory output for the Seat Leon 1.2 TSI is 105 hp and 175 Nm. A Stage 1 remap targets 138 hp and 220 Nm — 33 hp (+31%) and 45 Nm (+26%).

Those are the figures we work to on this engine. They are a starting point, not a promise: the number we hand back is the one your car makes on our dyno, measured before and after on the same day, in the same conditions.

What 33 hp changes on the road

A turbocharged petrol responds to a remap mostly through boost and ignition timing. Taking the 1.2 TSI from 105 hp to 138 hp, with torque from 175 Nm to 220 Nm, sharpens throttle response and shortens the gap between asking for power and getting it — the car stops feeling like it is thinking about it first.

Gains of this size (+31%) are normal for this kind of engine on pump fuel, with no hardware changes.

What Stage 1 involves on a Seat Leon

We read the ECU, log the car as it stands, and put it on the dyno to confirm the 105 hp baseline — a tired or faulty engine gets diagnosed before it gets mapped, not after.

The calibration is written for your car, not pulled from a file library. We adjust fuelling, ignition timing and boost pressure, then re-run the dyno to verify the 138 hp and 220 Nm figure and check knock, lambda and temperatures under load.

Turnaround is same-day for most cars. Stock file is archived, so the car can go back to standard whenever you want.

Which Seat Leon this covers

These figures are for the 1.2 TSI as fitted 2012–2017. Engine code and ECU type decide what is possible, so send us the registration or VIN and we will confirm the exact variant before you book anything.

Seat Leon remap price and booking

Stage 1 for the Seat Leon 1.2 TSI starts at €450, including the dyno runs before and after and the stock-file archive.

We work from Leoforos Karamanli 127, Artemida 19016, east of Athens, and tune remotely across Europe where the ECU allows it. WhatsApp +30 697 728 8810 with your registration for a straight answer on your car.

Other Seat Leon engines

More Seat tuning

More from DMS Tuned

WhatsApp +30 697 728 8810 · Επικοινωνία · Τιμές · Δυναμόμετρο · ECU Tuning