GAN tuning modules · up to +30% power

Performance Chip Tuning Subaru Forester II (2002–2008)

9 engines · +15 to +37 hp

Choose the engine for your Subaru Forester II

up to +30%power with GAN GT
up to 15%fuel savings
up to 2 yearsengine warranty
50 daystest drive

The short answer

Subaru Forester II: 9 engines — 9 gas. Gains run from +15 to +37 hp, with up to +49 Nm more torque. GAN GTL from 249 EUR, GAN GT from 399 EUR. GAN GA+ from 189 EUR.

engines

9 gas

+37hp

best in this generation: 2.5 177 → 214 hp

gain range +15…+37 hp

+49Nm

max torque gain

2.5, GT

turbo engine

8 — GA / GA+

Horsepower and torque gains

All Subaru Forester II engines: exact gains

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

Engine	STOCK → with GAN	Gain	Tuners and prices
Gasoline · 9 engines
2.5177 hp / 235 Nm	177 hp214 hp / 284 Nm	+37 hp+49 Nm	GTL — 249 EUR · 209 hp GT — 399 EUR · 214 hp	Select →
2.5T230 hp / 320 Nm	230 hp258 hp / 358 Nm	+28 hp+38 Nm	GA — 199 EUR · 258 hp GA+ — 199 EUR · 258 hp	Select →
2.0T220 hp / 315 Nm	220 hp246 hp / 353 Nm	+26 hp+38 Nm	GA — 199 EUR · 246 hp GA+ — 199 EUR · 246 hp	Select →
2.5i173 hp / 229 Nm	173 hp194 hp / 256 Nm	+21 hp+27 Nm	GA — 189 EUR · 194 hp GA+ — 189 EUR · 194 hp	Select →
2.5i165 hp / 225 Nm	165 hp185 hp / 252 Nm	+20 hp+27 Nm	GA — 189 EUR · 185 hp GA+ — 189 EUR · 185 hp	Select →
2.0i158 hp / 186 Nm	158 hp177 hp / 208 Nm	+19 hp+22 Nm	GA — 189 EUR · 177 hp GA+ — 189 EUR · 177 hp	Select →
2.0i140 hp / 186 Nm	140 hp157 hp / 208 Nm	+17 hp+22 Nm	GA — 189 EUR · 157 hp GA+ — 189 EUR · 157 hp	Select →
2.0i137 hp / 186 Nm	137 hp153 hp / 208 Nm	+16 hp+22 Nm	GA — 189 EUR · 153 hp GA+ — 189 EUR · 153 hp	Select →
2.0i125 hp / 184 Nm	125 hp140 hp / 206 Nm	+15 hp+22 Nm	GA — 189 EUR · 140 hp GA+ — 189 EUR · 140 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.

All Subaru Forester generations Subaru Forester (I) 2000-02 Subaru Forester (III) 2008-13 Subaru Forester (IV) 2013-19 Subaru Forester (V) 2018->

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:

2.5i 165 / 173 hp2.0i 125 / 137 / 140 / 158 hp

GAN tuning module for the Subaru Forester II

Subaru Forester 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

+37 hpbest in this generation
2.5 177 hp → 214 hp. The other engines gain +15 hp and up; check the table for each one.
up to +12%with the GAN GA+ on naturally aspirated engines
For 6 naturally aspirated engines: the GAN GA / GAN GA+ tuners; check the table for each engine’s numbers.
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 Subaru Forester II

GAN GT from 399 EUR GAN GTL from 249 EUR GAN GA / GA+ from 189 EUR

Find your engine in the table

FAQ

Subaru Forester II tuning FAQ

Which tuner do I need for my Subaru Forester II?

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.