Volkswagen Jetta (1B) 2011> 1.2 TSI 103bhp remap figures
Thinking of remapping a Volkswagen Jetta 1.2 TSI 103bhp? The standard car makes 103bhp and 175Nm; with a Stage 1 remap from our Leicester workshop we expect around 137bhp and 222Nm, up to +34bhp and +47Nm.
Choose your map
Stage 1 remap figures
A Stage 1 remap is a software-only change to the ECU on an otherwise standard car. It needs no extra parts, which makes it the usual starting point.
| Stock | Vanguard expected | Expected gain, up to | |
|---|---|---|---|
| Power | 103 bhp | 137 bhp | +34 bhp |
| Torque | 175 Nm | 222 Nm | +47 Nm |
All maps at a glance
| Map | Power | Torque | Expected gain, up to |
|---|---|---|---|
| Stock | 103 bhp | 175 Nm | |
| Stage 1Maximum software-only performance | 137 bhp | 222 Nm | +34 bhp +47 Nm |
| Stage 1 EcoPerformance with economy in mind | 129 bhp | 218 Nm | +26 bhp +43 Nm |
| Eco mapEconomy first | 126 bhp | 216 Nm | +23 bhp +41 Nm |
Who is the Stage 1 map for?
- Drivers who want a noticeably quicker car from a software-only change, with no new parts.
- Daily drivers who want stronger mid-range pull and a sharper throttle.
- Anyone who wants the biggest gain we list without fitting hardware.
What this means for your Jetta
On a turbocharged petrol engine a remap adjusts boost, ignition timing and fuelling together, so both power and mid-range torque rise and the car pulls harder out of corners and junctions.
Engine management is by a Siemens Simos 10 unit. We read the ECU on your car and compare it with the software listed here before any work starts, so you know what to expect before you commit.
We remap at our Belgrave Gate workshop in Leicester, or at your home or work within 30 miles, and every job starts with a diagnostic check.
Please note: these are expected figures, not guarantees. Real results vary with the condition of the vehicle, the ECU software version, fuel quality and the hardware fitted. Some options - including Stage 2 and anything that needs extra hardware - are for off-road or competition use only. We check every vehicle first and confirm what is achievable before any work starts.
Figures reviewed 22 October 2026.
Stage 1 questions
How much power does the Stage 1 map give the Volkswagen Jetta 1.2 TSI 103bhp?
We expect 137bhp and 222Nm against 103bhp and 175Nm as standard: up to +34bhp and +47Nm. These are expected figures, and we confirm what is achievable on your own car after a diagnostic check.
Does a Stage 1 remap need any extra parts on the Volkswagen Jetta 1.2 TSI 103bhp?
No. Stage 1 is a software-only change to the ECU on an otherwise standard car.
Is there a gentler map than Stage 1 for this engine?
Yes, two. Stage 1 Eco is performance with economy in mind: 129bhp and 218Nm expected. The Eco map is economy first: 126bhp and 216Nm. Both still sit above the standard 103bhp and 175Nm.
Do I need to tell my insurer about a remap?
Yes. A remap is a modification, so you should declare it to your insurer.
More Volkswagen Jetta figures
Other petrol variants
All petrol Jetta (1B) variants · Jetta (1B) 2011> overview · All Volkswagen figures