Stage 1 · Diesel

Vauxhall Vectra (C) 2006-2008 1.9 CDTi 120bhp remap figures

Thinking of remapping a Vauxhall Vectra 1.9 CDTi 120bhp? The standard car makes 120bhp and 279Nm; with a Stage 1 remap from our Leicester workshop we expect around 188bhp and 390Nm, up to +68bhp and +111Nm.

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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	120 bhp	188 bhp	+68 bhp
Torque	279 Nm	390 Nm	+111 Nm

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All maps at a glance

Map	Power	Torque	Expected gain, up to
Stock	120 bhp	279 Nm
Stage 1Maximum software-only performance	188 bhp	390 Nm	+68 bhp +111 Nm
Stage 1 EcoPerformance with economy in mind	171 bhp	381 Nm	+51 bhp +102 Nm
Eco mapEconomy first	166 bhp	376 Nm	+46 bhp +97 Nm

Who is the Stage 1 map for?

Drivers who want stronger pulling power for overtaking, hills and towing, with no parts to fit.
Daily and motorway drivers who want the engine to feel less strained at cruising speed.
Anyone who wants the biggest software-only change we list for this engine.

What this means for your Vectra

On a diesel the biggest change is normally torque: the remap changes how much fuel and boost the ECU allows across the rev range, so pulling power arrives earlier and holds on longer.

Engine management is by a Bosch EDC16C39 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 Vauxhall Vectra 1.9 CDTi 120bhp?

We expect 188bhp and 390Nm against 120bhp and 279Nm as standard: up to +68bhp and +111Nm. 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 Vauxhall Vectra 1.9 CDTi 120bhp?

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: 171bhp and 381Nm expected. The Eco map is economy first: 166bhp and 376Nm. Both still sit above the standard 120bhp and 279Nm.

Do I need to tell my insurer about a remap?

Yes. A remap is a modification, so you should declare it to your insurer.

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