GAN tuning modules · up to +30% power

Chiptuning 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

At a glance

Subaru Forester II: 9 engines — 9 petrol. The gain is +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 petrol

+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+

Power gains

All Subaru Forester II 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 · 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 →

standard powergain with GAN

Each engine has its own tuning box: GAN GT / GTL or GAN GA / GA+. Prices are per box 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 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:

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

GAN tuning box for the Subaru Forester II

Subaru Forester II 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

+37 hpbest in this generation
2.5 177 hp → 214 hp. The other engines gain at least +15 hp; check the table for each one.
up to +12%with the GAN GA+ on naturally aspirated engines
For 6 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.

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

FAQs

Subaru Forester II remap: common questions

Which tuning box do I need for the Subaru Forester II?

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.