Subaru Trezia 1.4 D 90 hp — Stage 1 file (+25 hp)
hp
Stage 1 file for Subaru Trezia 1.4 D 90 hp
Target +0 hp. Custom development for your engine.
Chip tuning for Subaru Trezia 1.4 D 90 hp ECU
Subaru Trezia (2011) 1.4 D 90 hp — mass-market diesel engine of the passenger segment of the Subaru Corporation (Toyota владеет 20%) group (Япония, 1953). Stage 1 chip tuning raises power from 90 to 115 hp (+25 hp, +28%) and torque from 205 to 260 Nm (+55 Nm). A diesel built in 2011 — the Tricore ECU era; OBD flash works on most production revisions.
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. The WRX STI is Subaru's iconic rally model. Subaru diesels are rare and were aimed mainly at the European market. Subaru has unique flat diesel engines (Boxer Diesel).
The Subaru community in JDM and rally culture is the largest for the WRX/STI. Low-output Subaru models use naturally aspirated Boxer engines; Stage 1 is limited.
Frequently asked questions
How much does the power of the Subaru Trezia 1.4 D 90 hp increase after Stage 1?
Stage 1 chip tuning on the Subaru Trezia 1.4 D 90 hp boosts engine output by 25 hp: from 90 to 115 hp. Torque rises from 205 to 260 Nm (+55 Nm).
What changes in the Subaru Trezia ECU after Stage 1?
Stage 1 is a software optimization of the factory ECU firmware of the Subaru Trezia with no hardware changes. The injection, boost, ignition-timing and torque maps are reprogrammed. The gain is +25 hp with no hardware changes.
Is Stage 1 worth doing on the base Subaru Trezia?
Yes, Stage 1 on the low-output Subaru Trezia 1.4 D 90 hp delivers a moderate but genuine gain — without overstressing the hardware. On base naturally aspirated engines the effect is felt mainly as improved throttle response and a stronger mid-range.
What is Stage 2 for the Subaru Trezia 1.4 D 90 hp?
Stage 2 for the Subaru Trezia 1.4 D 90 hp is Stage 1 plus hardware changes: a downpipe, a larger intake and a performance intercooler. The gain is considerably higher, but it requires professional component selection.
Does the factory warranty of the Subaru Trezia remain valid after Stage 1?
After remapping the Subaru Trezia, the official factory warranty on the engine and gearbox is lost (this applies to any manufacturer when the ECU is modified). CHIPOK guarantees the quality of the calibration and free revisions.
How long is the wait for a Stage 1 remap for the Subaru Trezia?
Reading and writing via OBD takes 25-30 minutes on the Subaru Trezia. Bench reading (BDM/JTAG) takes about 60 minutes plus refitting. Remote file processing at CHIPOK takes 5-30 minutes.
How do you roll back to the factory firmware of the Subaru Trezia?
Before Stage 1 the original of the Subaru Trezia 1.4 D 90 hp is read out and saved — returning to the factory state is possible at any time.
How much does chip tuning the Subaru Trezia 1.4 D 90 hp cost?
The remap price for the Subaru Trezia 1.4 D 90 hp is dynamic and is calculated in the CHIPOK calculator based on the selected options. A credit-based payment model, with no subscription fees.