Performance Chip Tuning Jeep Wrangler II (until 2006)
7 engines · +14 to +23 hp
Jeep Wrangler II: 7 engines — 7 gas. Gains run from +14 to +23 hp, with up to +38 Nm more torque. GAN GA+ from 189 EUR.
All Jeep Wrangler II engines: exact gains
STOCK output, output with GAN, gain and price for each module.
| Engine | STOCK → with GAN | Gain | Tuners and prices | |
|---|---|---|---|---|
| Gasoline · 7 engines | ||||
| 4.0i192 hp / 318 Nm | +23 hp+38 Nm |
GA — 189 EUR · 215 hp GA+ — 189 EUR · 215 hp |
Select → | |
| 4.0i Rubicon193 hp / 319 Nm | +23 hp+38 Nm |
GA — 189 EUR · 216 hp GA+ — 189 EUR · 216 hp |
Select → | |
| 4.0i183 hp / 301 Nm | +22 hp+36 Nm |
GA — 189 EUR · 205 hp GA+ — 189 EUR · 205 hp |
Select → | |
| 4.0i178 hp / 290 Nm | +21 hp+35 Nm |
GA — 189 EUR · 199 hp GA+ — 189 EUR · 199 hp |
Select → | |
| 2.4i147 hp / 224 Nm | +18 hp+27 Nm |
GA — 189 EUR · 165 hp GA+ — 189 EUR · 165 hp |
Select → | |
| 2.5i121 hp / 190 Nm | +15 hp+23 Nm |
GA — 189 EUR · 136 hp GA+ — 189 EUR · 136 hp |
Select → | |
| 2.5i118 hp / 198 Nm | +14 hp+24 Nm |
GA — 189 EUR · 132 hp GA+ — 189 EUR · 132 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:
Jeep Wrangler II tune: what changes
More power and torque with no ECU flash and no new parts – the module only adjusts the engine sensor signals. Your factory warranty is preserved: the ECU software is never changed, 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
- +23 hpbest in this generation
4.0i 192 hp → 215 hp. The other engines gain +14 hp and up; check the table for each one.
- up to +30%more power
GAN GT: up to 30%, GAN GTL: up to 25%, GAN GA+: up to 12%.
- GAN APPpower control via smartphone
Switch between SPORT, DYNAMIC, ECO and STOCK in the GAN app.
- 50 daystest drive
Enhanced performance or your money back, excluding shipping costs.
Jeep Wrangler II tuning FAQ
Which tuner do I need for my Jeep Wrangler II?
Every engine in this generation is naturally aspirated, so you’ll want 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.