Chip Tuning VW Golf IV (2000–2003)
13 engines · +9 to +24 hp
Volkswagen Golf IV: 13 engines — 8 petrol and 5 diesel. Gains range from +9 to +24 hp, with up to +38 Nm of torque. GAN GA+ from 189 EUR.
All Volkswagen Golf IV engines: exact gains
STOCK output, output with GAN, gain and price for each module. Diesel and petrol engines are listed separately.
| Engine | STOCK → with GAN | Gain | Tuning modules and prices | |
|---|---|---|---|---|
| Diesel · 5 engines | ||||
| 1.9 TDI150 hp / 320 Nm | +18 hp+38 Nm |
GA — 189 EUR · 168 hp GA+ — 189 EUR · 168 hp |
Select → | |
| 1.9 TDI131 hp / 310 Nm | +16 hp+37 Nm |
GA — 189 EUR · 147 hp GA+ — 189 EUR · 147 hp |
Select → | |
| 1.9 TDI116 hp / 285 Nm | +14 hp+34 Nm |
GA — 189 EUR · 130 hp GA+ — 189 EUR · 130 hp |
Select → | |
| 1.9 TDI116 hp / 310 Nm | +14 hp+37 Nm |
GA — 189 EUR · 130 hp GA+ — 189 EUR · 130 hp |
Select → | |
| 1.9 TDI101 hp / 240 Nm | +12 hp+29 Nm |
GA — 189 EUR · 113 hp GA+ — 189 EUR · 113 hp |
Select → | |
| Petrol · 8 engines | ||||
| 2.8i204 hp / 270 Nm | +24 hp+32 Nm |
GA — 199 EUR · 228 hp GA+ — 199 EUR · 228 hp |
Select → | |
| 2.3i170 hp / 220 Nm | +20 hp+26 Nm |
GA — 189 EUR · 190 hp GA+ — 189 EUR · 190 hp |
Select → | |
| 1.8T150 hp / 210 Nm | +18 hp+25 Nm |
GA — 189 EUR · 168 hp GA+ — 189 EUR · 168 hp |
Select → | |
| 2.0i116 hp / 172 Nm | +14 hp+21 Nm |
GA — 189 EUR · 130 hp GA+ — 189 EUR · 130 hp |
Select → | |
| 1.6i105 hp / 148 Nm | +13 hp+18 Nm |
GA — 189 EUR · 118 hp GA+ — 189 EUR · 118 hp |
Select → | |
| 1.6i101 hp / 145 Nm | +12 hp+17 Nm |
GA — 189 EUR · 113 hp GA+ — 189 EUR · 113 hp |
Select → | |
| 1.8i90 hp / 144 Nm | +11 hp+17 Nm |
GA — 189 EUR · 101 hp GA+ — 189 EUR · 101 hp |
Select → | |
| 1.4i75 hp / 128 Nm | +9 hp+15 Nm |
GA — 189 EUR · 84 hp GA+ — 189 EUR · 84 hp |
Select → | |
Each engine has its own tuning module: GAN GT / GTL or GAN GA / GA+. Prices are per tuning module and include the current discount.
Not sure which engine you have?
The badge alone is not enough: in this generation, the same engine designation came in different power outputs, each with its own calibration. Check the power output in your registration document and find the matching row.
Same badge, different factory power outputs in this generation:
Volkswagen Golf IV tuning: what changes
More power and torque without an ECU remap or replacing any parts. The tuning module only adjusts the engine sensor signals. Your manufacturer’s warranty is preserved: the ECU software is never changed, and the module can be removed at any time.
- Bluetoothsmartphone mode control
- 18 mappingsfine tuning for your engine

- 15 minutesfitted to the factory connectors
- IP67water and dust protection
- +24 hpbest in this generation
2.8i 204 hp → 228 hp. The other engines gain from +9 hp; see the table for each one.
- +38 Nmfor diesels
Diesels gain mainly torque: +29 to +38 Nm.
- GAN APPpower control via smartphone
SPORT, DYNAMIC, ECO and STOCK modes in the GAN app.
- 50 daystest drive
Enhanced performance or your money back, excluding delivery costs.
What makes the Volkswagen Golf IV special
Golf 4 tuning: pump-injector diesels and the petrol range
On a Golf 4, 150 hp means either the 1.9 TDI with pump injectors or the 1.8T of the GTI, and both work with the GAN GA+. The PD diesel (EA188) came with 101, 115, 131 and 150 hp. For Golf 4 tuning with a tuning box all four use the GAN GA+, with the 115 hp version shown in the catalogue as 116. Older 1.9 TDI versions with a distributor pump, 90 and 110 hp, existed too.
The Golf IV, also called Golf Mk4 or Typ 1J, was built as a hatchback from October 1997 to August 2003; the Variant ran until 2006. Europe saw no facelift of the body, only step-by-step updates of engines and equipment.
Petrol engines from the 1.4 to the VR6
The petrol range starts with the 1.4 with 75 hp and the 1.6 with 101 and 105 hp. It continues with the 2.0 with 115 hp, the 2.3 VR5 with 170 hp and the 2.8 VR6 with 204 hp. The 1.8T with 150 hp is a turbo petrol engine, and the GTI had the same output.
The 1.9 TDI with 90 hp and the 1.8T with 180 hp of the GTI anniversary model do not appear under their own names for the Golf IV: you will find the same engines as the 1.9 TDI with 90 hp and the 1.8T RS of the Skoda Octavia. The 1.9 TDI with 110 hp and the R32 are not in the catalogue.
Volkswagen Golf IV chip tuning: questions
How much more power does chip tuning give a Golf 4 1.9 TDI with 150 hp?
With the GAN GA+ the 1.9 TDI PD goes from 150 hp and 320 Nm to 168 hp and 358 Nm. The GAN GA+ is rated at up to 12% more power; these are the stated gains for this engine type, not a dyno reading of your car.
How much power does the GAN GA+ add to the Golf 4 1.6 and 2.0?
The 1.6 with 105 hp goes to 118 hp and the 2.0, listed at 116 hp, to 130 hp with the GAN GA+. The stated gain for the GAN GA+ on these engines is up to 12% more power.
How much power does the GAN GA+ add to the Golf 4 1.9 TDI with 131 hp?
The pump-injector 1.9 TDI rated at 131 hp and 310 Nm reaches 147 hp and 347 Nm with the GAN GA+. The ADAC rates the 1.9 TDI engines as very durable.
Is a tuning module the same as a Stage 1 tune?
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.