Alfa Romeo 156 1997-2005 2.5 V6 192bhp remap figures
Stock, this 1997-2005 Alfa Romeo 156 petrol (2.5L) produces 192bhp and 222Nm. Our expected figures for a Stage 1 remap are 209bhp and 242Nm, an expected gain of up to 17bhp and 20Nm.
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 | 192 bhp | 209 bhp | +17 bhp |
| Torque | 222 Nm | 242 Nm | +20 Nm |
All maps at a glance
| Map | Power | Torque | Expected gain, up to |
|---|---|---|---|
| Stock | 192 bhp | 222 Nm | |
| Stage 1Maximum software-only performance | 209 bhp | 242 Nm | +17 bhp +20 Nm |
| Stage 1 EcoPerformance with economy in mind | 205 bhp | 240 Nm | +13 bhp +18 Nm |
| Eco mapEconomy first | 203 bhp | 239 Nm | +11 bhp +17 Nm |
Who is the Stage 1 map for?
- Drivers who want a sharper throttle and a small, honest gain from software alone.
- Owners who would rather keep the car standard in every other way.
- Anyone who wants the fullest software-only map for this engine, accepting that the gain is modest without a turbocharger.
What this means for your 156
Naturally aspirated petrol engines have no boost to raise, so gains from software alone are more modest than on a turbocharged car and come from fuelling, ignition and throttle response.
This car is listed with a Bosch ME3.1 engine control unit. Older engine management is simpler to work with, but age matters: worn sensors, leaks and tired components can hold back what a remap delivers, which is why we run a diagnostic check first.
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 Alfa Romeo 156 2.5 V6 192bhp?
We expect 209bhp and 242Nm against 192bhp and 222Nm as standard: up to +17bhp and +20Nm. 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 Alfa Romeo 156 2.5 V6 192bhp?
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: 205bhp and 240Nm expected. The Eco map is economy first: 203bhp and 239Nm. Both still sit above the standard 192bhp and 222Nm.
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 Alfa Romeo 156 figures
Other petrol variants
- 2.0 JTS 165bhp 1997-2005
- 2.0 TS 150bhp 1997-2005
- 1.8 TS 140bhp 1997-2005
- 3.2 V6 GTA 246bhp 1997-2005
- 1.6 TS 120bhp 1997-2005
All petrol 156 variants · 156 1997-2005 overview · All Alfa Romeo figures