Chiptuning BMW Z4 E89 (2009–2016)
5 engines · +21 to +77 hp
BMW Z4 E89: 5 engines — 5 petrol. The gain is +21 to +77 hp, with up to +105 Nm more torque. GAN GTL from 279 EUR, GAN GT from 459 EUR. GAN GA+ from 199 EUR.
All BMW Z4 E89 engines: exact gains
Standard output, output with GAN, the gain and the price for each box.
| Engine | STOCK → with GAN | Gain | Tuning boxes and prices | |
|---|---|---|---|---|
| Petrol · 5 engines | ||||
| sDrive35i (sensor1)306 hp / 400 Nm | +77 hp+105 Nm |
GTL — 279 EUR · 371 hp GT — 459 EUR · 383 hp |
Select → | |
| sDrive35i (sensor2)306 hp / 400 Nm | +77 hp+105 Nm |
GTL — 279 EUR · 371 hp GT — 459 EUR · 383 hp |
Select → | |
| sDrive35si340 hp / 450 Nm | +69 hp+78 Nm |
GTL — 279 EUR · 399 hp GT — 459 EUR · 409 hp |
Select → | |
| 23i204 hp / 250 Nm | +24 hp+30 Nm |
GA — 199 EUR · 228 hp GA+ — 199 EUR · 228 hp |
Select → | |
| 30i258 hp / 310 Nm | +21 hp+25 Nm |
GA — 199 EUR · 279 hp GA+ — 199 EUR · 279 hp |
Select → | |
Each engine has its own tuning box: GAN GT / GTL or GAN GA / GA+. Prices are per box and include the current discount.
Not sure which engine you have?
Find your engine by the power output in your registration document: each version has its own module calibration.
BMW Z4 E89 remap: what changes
The GAN box plugs in between the sensors and the engine control unit (ECU) and adjusts their signals, while a flash remap rewrites the ECU itself. Your manufacturer’s warranty is preserved: the ECU software is never changed, and the box can be removed at any time.
- Bluetoothchange modes from your phone
- 18 mapsfine-tuning for your engine

- 15 minutesfitted to the factory connectors
- IP67water and dust protection
- +77 hpbest in this generation
sDrive35i (sensor1) 306 hp → 383 hp. The other engines gain at least +21 hp; check the table for each one.
- up to +12%with the GAN GA+ on naturally aspirated engines
For 2 naturally aspirated engines: GAN GA / GAN GA+ tuning boxes; check the table for each engine’s figure.
- GAN APPpower control via smartphone
SPORT, DYNAMIC, ECO and STOCK modes in the GAN app.
- 50 daystest drive
Feel the difference or get your money back, excluding delivery costs.
BMW Z4 E89 remap: common questions
Which tuning box do I need for the BMW Z4 E89?
Turbocharged engines take the GAN GT or GAN GTL, naturally aspirated ones the GAN GA or GAN GA+. Find your engine in the table above – each row shows the box and its price.
Is a tuning module the same as a Stage 1 remap?
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.