Nissan Interstar 2003-2011 2.5 DCi 146bhp remap figures
Stock, this 2003-2011 Nissan Interstar diesel (2.5L) produces 146bhp and 320Nm. Our expected figures for a Stage 1 remap are 190bhp and 416Nm, an expected gain of up to 44bhp and 96Nm.
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 | 146 bhp | 190 bhp | +44 bhp |
| Torque | 320 Nm | 416 Nm | +96 Nm |
All maps at a glance
| Map | Power | Torque | Expected gain, up to |
|---|---|---|---|
| Stock | 146 bhp | 320 Nm | |
| Stage 1Maximum software-only performance | 190 bhp | 416 Nm | +44 bhp +96 Nm |
| Stage 1 EcoPerformance with economy in mind | 179 bhp | 408 Nm | +33 bhp +88 Nm |
| Eco mapEconomy first | 175 bhp | 404 Nm | +29 bhp +84 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 Interstar
Diesel remaps work mainly on boost pressure, fuel delivery and torque limiters, which is why the Nm gain is usually the figure you feel in everyday driving, particularly when overtaking or towing.
Engine management is by a Bosch EDC16+C36 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 Nissan Interstar 2.5 DCi 146bhp?
We expect 190bhp and 416Nm against 146bhp and 320Nm as standard: up to +44bhp and +96Nm. 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 Nissan Interstar 2.5 DCi 146bhp?
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: 179bhp and 408Nm expected. The Eco map is economy first: 175bhp and 404Nm. Both still sit above the standard 146bhp and 320Nm.
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 Nissan Interstar figures
Other diesel variants
- 3.0 DCi 136bhp 2003-2011
- 2.5 DCi 120bhp 2003-2011
- 2.5 DCi 115bhp 2003-2011
- 2.5 DCi 100bhp 2003-2011
- 2.2 DCi 90bhp 2003-2011
- 1.9 DCi 82bhp 2003-2011
All diesel Interstar variants · Interstar 2003-2011 overview · All Nissan figures