Subaru , Impreza , GK/GT , WRX STi (2016-2021)

The Subaru Impreza WRX STI (GK and GT chassis codes) from 2016 to 2021 is a high-performance variant of the Impreza compact car. Here's an in-depth overview:

Engine:

• The 2.5-liter turbocharged Boxer engine produces 305 horsepower at 6,000 rpm and 295 lb-ft of torque at 4,000 rpm.
• It features a dual-stage intake system, which increases airflow and enhances power delivery.

Transmission:

• A close-ratio 6-speed manual transmission is standard, with a dual-mass flywheel and a helical-cut gearset for improved durability and shifting precision.
• An 8-speed CVT (continuously variable transmission) was also available on some trims, but the STI variant came only with the manual.

Performance:

• The WRX STI boasts a 0-60 mph time of approximately 4.6 seconds and can reach an electronically limited top speed of 155 mph.
• It features a sport-tuned suspension system with stiffer springs, sway bars, and Bilstein shock absorbers for improved handling and stability.

Exterior:

• The WRX STI has distinct exterior styling cues, including a black-painted front grille, hood scoop, and side mirrors.
• A rear spoiler is also standard to improve downforce and reduce drag.

Interior:

• The cabin features heated red and black Recaro seats with STI badging, leather-wrapped steering wheel, and aluminum shift knob.
• Infotainment includes a touchscreen 7-inch display with Apple CarPlay, Android Auto, and voice command capabilities.

Safety Features:

• A robust suite of standard safety features includes electronic stability control, traction control, brake assist, and seven airbags (including a driver's knee airbag).
• Blind-spot detection and rear cross-traffic alert were optional on some trims.

Trim Levels:

• The WRX STI was available in two primary trim levels for the 2016-2021 model years:
  • Base (GK): This trim came standard with the features mentioned above, minus a few options like LED steering responsive headlights.
  • Limited (GT and GT spec models had similar features to this trim level). The STI Touring spec is also notable for its unique exterior styling cues and added convenience features.

Warranty:

• Subaru offered a 3-year/36,000-mile basic warranty and a 5-year/60,000-mile powertrain warranty on the WRX STI.
• This coverage duration was in line with or better than most competitors in this segment.

Recalls and Reliability:

• The Impreza WRX STI had several recalls throughout its production run, but these were primarily related to software updates or minor mechanical issues that didn't significantly impact performance or safety.
• Subaru's reliability reputation is generally good, with many owners reporting satisfactory experiences.