Subaru Legacy 3.0i 245 hp — Stage 1 file (+20 hp)
hp
Stage 1 file for Subaru Legacy 3.0i 245 hp
Target +0 hp. Custom development for your engine.
Chip tuning for Subaru Legacy 3.0i 245 hp ECU
Subaru Legacy (2003) 3.0i 245 hp — mass-market petrol engine of the passenger segment of the Subaru Corporation (Toyota владеет 20%) group (Япония, 1953). Stage 1 chip tuning raises power from 245 to 265 hp (+20 hp, +8%) and torque from 297 to 330 Nm (+33 Nm). The 2003 generation — old-era petrol ECUs (ME7/ME9/MED9/Simos) with easily readable memory.
The boxer (flat) layout is Subaru's signature engine architecture. STI (Subaru Tecnica International) is the performance division that builds the WRX STI. Subaru uses permanent all-wheel drive (AWD) on most of its models. Subaru's petrol range comprises naturally aspirated and turbo flat engines. On the turbo WRX, Stage 1 delivers a confident gain. The WRX and WRX STI are the flagship of the brand's turbo segment.
The Subaru community in JDM and rally culture is the largest for the WRX/STI. On turbo Subaru engines, Stage 1 delivers a noticeable gain. High-output Subaru WRX models sit in the turbo segment, with solid headroom for Stage 1.
Frequently asked questions
How many horsepower does the Subaru Legacy 3.0i 245 hp reach after a remap?
After Stage 1 the power of the Subaru Legacy 3.0i 245 hp rises from 245 to 265 hp, a gain of 20 hp (+8%). Torque rises from 297 to 330 Nm (+33 Nm).
How does Stage 1 differ from stock on the Subaru Legacy?
Stage 1 on the Subaru Legacy 3.0i 245 hp is a software ECU calibration with no hardware changes. The key maps (boost/ignition/lambda/torque) are adjusted while factory tolerances are preserved. The gain is +20 hp with no hardware changes.
What does Stage 1 give on the powerful Subaru Legacy 3.0i 245 hp?
The high-output Subaru Legacy 3.0i 245 hp has a conservative factory calibration aimed at the mass market. Stage 1 unlocks the engine's real potential while turbo and injector life are preserved.
How does Stage 2 differ from Stage 1 on the Subaru Legacy 3.0i 245 hp?
Stage 2 on the Subaru Legacy 3.0i 245 hp means software + hardware (exhaust, intake, intercooler). The gain depends on the specific hardware combination.
Does Stage 1 void the warranty on the Subaru Legacy?
Stage 1 on the Subaru Legacy voids the factory warranty on the engine and transmission — this is standard for all manufacturers. CHIPOK provides its own warranty on the quality of the remap.
How quickly is chip tuning of the Subaru Legacy 3.0i 245 hp done?
The full remap cycle for the Subaru Legacy — from reading to writing the final file — takes 30-90 minutes depending on the ECU access method. The file is prepared at CHIPOK in 5-30 minutes.
Can you return to stock after Stage 1 on the Subaru Legacy?
The original Subaru Legacy ECU is always saved before flashing. Rolling back to the factory firmware is done with the same programmer in 25-30 minutes.
How much does Stage 1 cost for the Subaru Legacy 3.0i 245 hp?
The cost of Stage 1 for the Subaru Legacy 3.0i 245 hp is calculated in the calculator on this page — you select the options (DPF off, EGR off, AdBlue off, DTC off, etc.) and the price is capped by the package Max Price. Payment is by credits (1 cr = 1 €), with no subscriptions.