Nissan 350Z ECU remapping
21 files available

About remapping
The Nissan 350Z accounts for 21 files in our catalogue, entirely the 3.5 V6 DOHC naturally aspirated petrol. It is a rear-wheel-drive coupé that revived the marque's Z line.
Stage 1 makes up 18 files — a very clean profile — with 3 speed limiter removals, 2 pop and bang and one Stage 2. The ECUs include MEC35, MEC100XXX, SH705822N and Hitachi references. Being naturally aspirated, the gains here are modest by nature.
Model highlights
- ›18 Stage 1 files of 21 total: a very clean performance profile.
- ›Entirely the 3.5 V6 DOHC naturally aspirated petrol.
- ›3 speed limiter removals and 2 pop and bang files.
- ›ECUs including MEC35, MEC100XXX, SH705822N and Hitachi references.
Fuel split
Engines and gains
| Engine | Fuel | Stock | Stage 1 | Stage 2 |
|---|---|---|---|---|
| 3.5 V6 | Petrol | 313 hp | 335 hp +22 | — |
Indicative figures from the technical catalogue; confirmed when you request the file.
Power curve
3.5 V6
ECUs
Generations covered
ECU manufacturers
Available services
Remapping services
Stage 1
Optimising the original map with no hardware changes: more power and torque, full reliability.
Speed limiter removal
Removal of the factory speed limiter.
Pops & bangs
Pops & bangs exhaust effect (on lift-off and gear changes).
Stage 2
Remap for vehicles with mechanical upgrades (intake, exhaust, intercooler…).
Why remap with Repromatronic
- ✓More power and torque with engine-safe tuning
- ✓Sharper throttle response and nicer driving
- ✓Potential fuel savings in normal driving
- ✓Files built from the original and 100% reversible
- ✓Made by technicians with thousands of projects behind them
Are you a driver?
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Log in as a professionalFrequently asked questions
How much does a naturally aspirated V6 gain?
Considerably less than a turbocharged engine — there is no boost to adjust. We are honest about this: expect refinement in delivery, not a large power figure.
Is it worth doing at all then?
For many owners yes: throttle response and delivery through the mid-range improve noticeably, even though the peak figure barely moves.
Is the work reversible?
Yes. We always keep the original ECU file, so the car can be returned to its factory configuration.
