Nissan 350z (Z33) 2003-2010 3.5 V6 295bhp remap figures
Stock, this 2003-2010 Nissan 350z petrol (3.5L) produces 295bhp and 353Nm. Our expected figures for a Stage 1 remap are 317bhp and 383Nm, an expected gain of up to 22bhp and 30Nm.
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 | 295 bhp | 317 bhp | +22 bhp |
| Torque | 353 Nm | 383 Nm | +30 Nm |
All maps at a glance
| Map | Power | Torque | Expected gain, up to |
|---|---|---|---|
| Stock | 295 bhp | 353 Nm | |
| Stage 1Maximum software-only performance | 317 bhp | 383 Nm | +22 bhp +30 Nm |
| Stage 1 EcoPerformance with economy in mind | 312 bhp | 381 Nm | +17 bhp +28 Nm |
| Eco mapEconomy first | 310 bhp | 379 Nm | +15 bhp +26 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 350z
Without a turbocharger the improvement comes from ignition, fuelling and throttle mapping rather than boost, so expect a smaller but still noticeable change in response.
This car is listed with a Hitachi 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 Nissan 350z 3.5 V6 295bhp?
We expect 317bhp and 383Nm against 295bhp and 353Nm as standard: up to +22bhp and +30Nm. 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 350z 3.5 V6 295bhp?
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: 312bhp and 381Nm expected. The Eco map is economy first: 310bhp and 379Nm. Both still sit above the standard 295bhp and 353Nm.
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 350z figures
Other petrol variants
All petrol 350z (Z33) variants · 350z (Z33) 2003-2010 overview · All Nissan figures