Subaru WRX STI

Overview

• Manufacturer: Subaru Tecnica International (STI)
• Also called: Subaru Impreza WRX STI (1992–2014)
• Production:
  • Impreza-based models: 1992–2014
  • WRX-based models: 2015–2021
• Assembly: Japan, Gunma
• Class: Sport compact car
• Body style: 4-door sedan
• Layout: Front-engine, four-wheel-drive
• Platform: Subaru SI Platform
• Related: Subaru WRX

Powertrain

• Engine Options:
  • Petrol: 2.0L EJ207 H4-T (JDM)
  • 2.5L EJ257 H4-T (export)
• Transmission: 6-speed TY85 manual

First Generation (VA; 2014–2021)

• Released in 2014 alongside the VA WRX
• Features:
  • Uprated brakes
  • Subaru Technica International tuned EJ257 4-cylinder engine
  • Uprated 6-speed manual transmission
  • Unique body kit and spoiler
  • STI-exclusive interior upgrades (gauge cluster, shifter knob, Recaro seats in certain models)
• Interior predominantly red accented

MY2018 Updates

• Changes:
  • New front bumper
  • Fluorescent green brake calipers (6-piston in front)
  • Turning front lights
  • New central differential setting mechanism (DCCD)
  • 19-inch wheels (often changed back to 18-inch by rally fans)

2020 Announcements

• Subaru to phase out WRX STI and EJ257 engine
• Launch of STI WRX EJ25 Final Edition:
  • BBS 19 gold forged aluminum wheels
  • Silver Brembo calipers
  • Black door mirror covers
  • STI cherry blossom front grille pinstripe
  • Final Edition engine cover plate
  • Numbered EJ25 Final Edition badge
  • Limited to 75 units globally

Second Generation (VB; 2021)

• No official VB WRX STI
• Subaru showcased STI S210 prototype (limited to Japan)
• Outside Japan, WRX with 'tuning by STI' available
• STI accessories for second-generation WRX include:
  • Lip spoilers
  • Exhaust tips
  • Shifter knobs
  • Region-specific options

Engines

• Tuned-by-STI Engines: EJ257 (Export), EJ207 (JDM)
• Highest output EJ25 in 2019 STI S209: 341hp (254kW) at 6,400 rpm, 330lbft (450 Nm) of torque

Retirement Reasons

• Adoption of Subaru Global Platform not engineered for EJ engine
• Transition to FA and FB engines, no current STI-tuned variants

The information is based on the Subaru WRX STI Wikipedia page. This document captures important details about the vehicle's history, features, and technical specifications.