Performance Chip Tuning Jeep Grand Cherokee II (until 2004)
5 engines · +21 to +47 hp
Jeep Grand Cherokee II: 5 engines — 3 gas and 2 diesel. Gains run from +21 to +47 hp, with up to +105 Nm more torque. GAN GTL from 249 EUR, GAN GT from 399 EUR. GAN GA+ from 189 EUR.
All Jeep Grand Cherokee 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 · 2 engines | ||||
| 2.7 CRD163 hp / 400 Nm | +47 hp+105 Nm |
GTL — 249 EUR · 203 hp GT — 399 EUR · 210 hp |
Select → | |
| 4.7i Overland258 hp / 425 Nm | +21 hp+34 Nm |
GA — 199 EUR · 279 hp GA+ — 199 EUR · 279 hp |
Select → | |
| Gasoline · 3 engines | ||||
| 4.7i235 hp / 400 Nm | +28 hp+48 Nm |
GA — 199 EUR · 263 hp GA+ — 199 EUR · 263 hp |
Select → | |
| 4.7i220 hp / 390 Nm | +26 hp+47 Nm |
GA — 199 EUR · 246 hp GA+ — 199 EUR · 246 hp |
Select → | |
| 4.0i190 hp / 305 Nm | +23 hp+37 Nm |
GA — 189 EUR · 213 hp GA+ — 189 EUR · 213 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 Grand Jeep Cherokee 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
- +47 hpbest in this generation
2.7 CRD 163 hp → 210 hp. The other engines gain +21 hp and up; check the table for each one.
- +105 Nmfor diesels
Diesels gain mostly torque: +34 to +105 Nm for towing and hauling.
- up to +12%with the GAN GA+ on naturally aspirated engines
For 4 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.
What Jeep Grand Cherokee owners say about GAN
The installation took about 15 minutes, it really works, although I really did not believe in it. The car runs much softer in different modes and revs on the highway was lower than usual and I suppose the fuel consumption is also less, but at this moment I have no measurements. I am very glad with this purchase. I…
Jeep Grand Cherokee II tuning FAQ
Which tuner do I need for my Jeep Grand Cherokee 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.