Chip Tuning Honda Accord VII (2002–2007)
6 engines · +19 to +41 hp
Honda Accord VII: 6 engines — 5 petrol and 1 diesel. Gains range from +19 to +41 hp, with up to +93 Nm of torque. GAN GTL from 219 EUR, GAN GT from 329 EUR. GAN GA+ from 189 EUR.
All Honda Accord VII engines: exact gains
STOCK output, output with GAN, gain and price for each module. Diesel and petrol engines are listed separately.
| Engine | STOCK → with GAN | Gain | Tuning modules and prices | |
|---|---|---|---|---|
| Diesel · 1 engine | ||||
| 2.2 i-CTDi140 hp / 340 Nm | +41 hp+93 Nm |
GTL — 219 EUR · 175 hp GT — 329 EUR · 181 hp |
Select → | |
| Petrol · 5 engines | ||||
| 3.0i240 hp / 287 Nm | +29 hp+34 Nm |
GA — 199 EUR · 269 hp GA+ — 199 EUR · 269 hp |
Select → | |
| 2.0i220 hp / 206 Nm | +26 hp+25 Nm |
GA — 199 EUR · 246 hp GA+ — 199 EUR · 246 hp |
Select → | |
| 2.4i190 hp / 220 Nm | +23 hp+26 Nm |
GA — 189 EUR · 213 hp GA+ — 189 EUR · 213 hp |
Select → | |
| 2.0i155 hp / 190 Nm | +19 hp+23 Nm |
GA — 189 EUR · 174 hp GA+ — 189 EUR · 174 hp |
Select → | |
| 2.4i160 hp / 218 Nm | +19 hp+26 Nm |
GA — 189 EUR · 179 hp GA+ — 189 EUR · 179 hp |
Select → | |
Each engine has its own tuning module: GAN GT / GTL or GAN GA / GA+. Prices are per tuning module and include the current discount.
Not sure which engine you have?
The badge alone is not enough: in this generation, the same engine designation came in different power outputs, each with its own calibration. Check the power output in your registration document and find the matching row.
Same badge, different factory power outputs in this generation:
Honda Accord VII tuning: what changes
The tuning module sits between the sensors and the engine control unit (ECU) and adjusts their signals. Your manufacturer’s warranty is preserved: the ECU software is never changed, and the module can be removed at any time.
- Bluetoothsmartphone mode control
- 18 mappingsfine tuning for your engine

- 15 minutesfitted to the factory connectors
- IP67water and dust protection
- +41 hpbest in this generation
2.2 i-CTDi 140 hp → 181 hp. The other engines gain from +19 hp; see the table for each one.
- +93 Nmfor diesels
Diesels gain mainly torque: +93 to +93 Nm.
- up to +12%with the GAN GA+ on naturally aspirated engines
For 5 naturally aspirated engines: GAN GA / GAN GA+ tuning modules; see the table for each engine’s figure.
- 50 daystest drive
Enhanced performance or your money back, excluding delivery costs.
What makes the Honda Accord VII special
Honda Accord VII tuning: the weakest engine gains the most
Which Accord VII gains more from a tuning box, the diesel or the petrol? Honda Accord VII tuning favours the diesel, although it has the lowest stated output of the three engines. From 2002 to 2008 the Accord VII came as the CL7, CL9 and CN1 saloon and the CM and CN Tourer; the engines were a 2.0 i-VTEC with 155 hp, a 2.4 i-VTEC with 190 hp and a 2.2 i-CTDi diesel with 140 hp.
The diesel was Honda's first of its own, and a European engine only. It had a five-speed manual gearbox until 2006 and a six-speed after the facelift of that year. The Tourer estate followed in spring 2003 with the same engines.
What each Accord VII engine gains
With the GAN GT the 2.2 i-CTDi gains 41 hp and 93 Nm. The 2.0 i-VTEC gains 19 hp and 23 Nm, and the 2.4 i-VTEC gains 23 hp and 26 Nm, both with the GAN GA+. So the diesel adds more than twice what the 2.0 petrol does, even though it starts from the lower figure.
Honda Accord VII chip tuning: questions
How much more power does Accord 2.2 i-CTDi tuning bring?
Stock, the diesel makes 140 hp and 340 Nm; the catalogue puts it at 181 hp and 433 Nm with the GAN GT. The same figures apply with the five-speed and the six-speed gearbox, and the module does not reprogram the gearbox. These are the stated gains for this engine type, not a dyno reading of your car.
What does a tuning box add to the Accord VII 2.0 and 2.4 i-VTEC?
Both are naturally aspirated and work with the GAN GA+. The GAN GA+ gives up to 12% more power, and both catalogue gains sit close to that limit.
Is Honda Accord Tourer tuning any different?
No, the estate has the same engines as the saloon, so the same figures apply.
Is a tuning module the same as a Stage 1 tune?
Not quite. Stage 1 usually means an ECU remap without replacing any parts. The tuning module also works without replacing parts, but it does not change the ECU software: it adjusts the sensor signals, comes off in about a minute, and the OFF button in the app restores the factory settings.