Volkswagen
GAN tuning modules · up to +30% power

Performance Chip Tuning VW Jetta IV (until 2005)

10 engines · +9 to +24 hp

Choose the engine for your Volkswagen Jetta IV
  • up to +30%power with GAN GT
  • up to 15%fuel savings
  • up to 2 yearsengine warranty
  • 50 daystest drive
The short answer

Volkswagen Jetta IV: 10 engines — 10 gas. Gains run from +9 to +24 hp, with up to +32 Nm more torque. GAN GA+ from 189 EUR.

10
engines
10 gas
+24hp
best in this generation: 2.8i 204 → 228 hp
gain range +9…+24 hp
+32Nm
max torque gain
2.8i, GA+
from 189EUR
tuning module price
GAN GA from 189 EUR · GAN GA+ from 189 EUR
Horsepower and torque gains

All Volkswagen Jetta IV engines: exact gains

STOCK output, output with GAN, gain and price for each module.

EngineSTOCK → with GANGainTuners and prices
Gasoline · 10 engines
2.8i204 hp / 270 Nm
204 hp228 hp / 302 Nm
+24 hp+32 Nm
GA — 199 EUR · 228 hp
GA+ — 199 EUR · 228 hp
Select →
1.8 TSI180 hp / 233 Nm
180 hp202 hp / 261 Nm
+22 hp+28 Nm
GA — 189 EUR · 202 hp
GA+ — 189 EUR · 202 hp
Select →
2.3i170 hp / 220 Nm
170 hp190 hp / 246 Nm
+20 hp+26 Nm
GA — 189 EUR · 190 hp
GA+ — 189 EUR · 190 hp
Select →
1.8i150 hp / 210 Nm
150 hp168 hp / 235 Nm
+18 hp+25 Nm
GA — 189 EUR · 168 hp
GA+ — 189 EUR · 168 hp
Select →
1.8i125 hp / 170 Nm
125 hp140 hp / 190 Nm
+15 hp+20 Nm
GA — 189 EUR · 140 hp
GA+ — 189 EUR · 140 hp
Select →
2.0i115 hp / 170 Nm
115 hp129 hp / 190 Nm
+14 hp+20 Nm
GA — 189 EUR · 129 hp
GA+ — 189 EUR · 129 hp
Select →
1.6i105 hp / 148 Nm
105 hp118 hp / 166 Nm
+13 hp+18 Nm
GA — 189 EUR · 118 hp
GA+ — 189 EUR · 118 hp
Select →
1.6i101 hp / 145 Nm
101 hp113 hp / 162 Nm
+12 hp+17 Nm
GA — 189 EUR · 113 hp
GA+ — 189 EUR · 113 hp
Select →
1.6i102 hp / 145 Nm
102 hp114 hp / 162 Nm
+12 hp+17 Nm
GA — 189 EUR · 114 hp
GA+ — 189 EUR · 114 hp
Select →
1.4i75 hp / 126 Nm
75 hp84 hp / 141 Nm
+9 hp+15 Nm
GA — 189 EUR · 84 hp
GA+ — 189 EUR · 84 hp
Select →
stock powergain with GAN

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:

1.8i 125 / 150 hp1.6i 101 / 102 / 105 hp
GAN tuning module for the Volkswagen Jetta IV

Volkswagen Jetta IV 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
GAN GT tuning module
  • 15 minutesplug-and-play install
  • IP67water and dust protection
  • +24 hpbest in this generation

    2.8i 204 hp → 228 hp. The other engines gain +9 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.

Prices for the Volkswagen Jetta IV
GAN GA / GA+ from 189 EUR
Find your engine in the table
FAQ

Volkswagen Jetta IV tuning FAQ

Which tuner do I need for my Volkswagen Jetta IV?

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.

2-year engine warranty
covers your engine, not just the performance chip
50-day test drive
no difference? Money back, excluding shipping costs
Control from your phone
SPORT / ECO / STOCK
Unplugs in about a minute
stock ECU software, no traces left
Ready for more power?

Pick your Volkswagen Jetta IV engine

Pick your engine and see the horsepower gain