Performance Chip Tuning Jeep Grand Cherokee SRT8
3 engines · +34 to +38 hp
Jeep Grand Cherokee SRT8: 3 engines — 3 gas. Gains run from +34 to +38 hp, with up to +50 Nm more torque. GAN GA+ from 219 EUR.
All Jeep Grand Cherokee SRT8 engines: exact gains
STOCK output, output with GAN, gain and price for each module.
| Engine | STOCK → with GAN | Gain | Tuners and prices | |
|---|---|---|---|---|
| Gasoline · 3 engines | ||||
| 6.4i470 hp / 465 Nm | +38 hp+37 Nm |
GA — 219 EUR · 508 hp GA+ — 219 EUR · 508 hp |
Select → | |
| 6.4i468 hp / 624 Nm | +37 hp+50 Nm |
GA — 219 EUR · 505 hp GA+ — 219 EUR · 505 hp |
Select → | |
| 6.1i426 hp / 569 Nm | +34 hp+46 Nm |
GA — 219 EUR · 460 hp GA+ — 219 EUR · 460 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 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
- +38 hpbest in this generation
6.4i 470 hp → 508 hp. The other engines gain +34 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.
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 tuning FAQ
Which tuner do I need for my Jeep Grand Cherokee SRT8?
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.