Performance Chip Tuning KIA Optima II (2005–2010)
8 engines · +16 to +41 hp
Kia Optima II: 8 engines — 7 gas and 1 diesel. Gains run from +16 to +41 hp, with up to +88 Nm more torque. GAN GTL from 219 EUR, GAN GT from 329 EUR. GAN GA+ from 189 EUR.
All Kia Optima II engines: exact gains
STOCK output, output with GAN, gain and price for each module. Diesel and gasoline engines are listed separately.
| Engine | STOCK → with GAN | Gain | Tuners and prices | |
|---|---|---|---|---|
| Diesel · 1 engine | ||||
| 2.0 CRDi140 hp / 305 Nm | +41 hp+88 Nm |
GTL — 219 EUR · 175 hp GT — 329 EUR · 181 hp |
Select → | |
| Gasoline · 7 engines | ||||
| 2.7i197 hp / 250 Nm | +24 hp+30 Nm |
GA — 189 EUR · 221 hp GA+ — 189 EUR · 221 hp |
Select → | |
| 2.7i189 hp / 247 Nm | +23 hp+30 Nm |
GA — 189 EUR · 212 hp GA+ — 189 EUR · 212 hp |
Select → | |
| 2.4i177 hp / 229 Nm | +21 hp+27 Nm |
GA — 189 EUR · 198 hp GA+ — 189 EUR · 198 hp |
Select → | |
| 2.4i163 hp / 222 Nm | +20 hp+27 Nm |
GA — 189 EUR · 183 hp GA+ — 189 EUR · 183 hp |
Select → | |
| 2.5i168 hp / 230 Nm | +20 hp+28 Nm |
GA — 189 EUR · 188 hp GA+ — 189 EUR · 188 hp |
Select → | |
| 2.0i144 hp / 189 Nm | +17 hp+23 Nm |
GA — 189 EUR · 161 hp GA+ — 189 EUR · 161 hp |
Select → | |
| 2.0i136 hp / 181 Nm | +16 hp+22 Nm |
GA — 189 EUR · 152 hp GA+ — 189 EUR · 152 hp |
Select → | |
Each engine gets its own performance chip: GAN GT / GTL or GAN GA / GA+. Prices are per performance chip and include the current discount.
Not sure which engine you have?
The badge alone isn’t enough: in this generation, the same engine came with different horsepower ratings, each with its own calibration. Check the horsepower in your owner’s manual or vehicle documents and find the matching row.
Same badge, different factory power outputs in this generation:
Kia Optima II tune: what changes
The module plugs in between the sensors and the engine control unit (ECU) and adjusts their signals. It never rewrites your ECU software: your factory warranty is preserved, and the module can be removed at any time.
- Bluetoothswitch modes from your phone
- 18 mapsto fine-tune your engine

- 15 minutesplug-and-play install
- IP67water and dust protection
- +41 hpbest in this generation
2.0 CRDi 140 hp → 181 hp. The other engines gain +16 hp and up; check the table for each one.
- +88 Nmfor diesels
Diesels gain mostly torque: +88 to +88 Nm for towing and hauling.
- up to +12%with the GAN GA+ on naturally aspirated engines
For 7 naturally aspirated engines: the GAN GA / GAN GA+ tuners; check the table for each engine’s numbers.
- 50 daystest drive
Enhanced performance or your money back, excluding shipping costs.
Kia Optima II tuning FAQ
Which tuner do I need for my Kia Optima II?
Turbo engines take the GAN GT or GAN GTL; naturally aspirated engines take the GAN GA or GAN GA+. Find your engine in the table above – each row shows the tuner and the price.
Is a tuning module the same as a Stage 1 tune?
Not quite. Stage 1 usually means an ECU flash tune 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.