2018 Subaru WRX STI Facelift: Key Upgrades And Review

The 2018 Subaru WRX STI represents a mid-cycle refresh for one of the most revered performance sedans, blending rally-bred heritage with modern refinements. This facelift introduces targeted updates to keep the STI competitive, focusing on visual appeal, braking prowess, and drivetrain sophistication without overhauling its core character. Retaining the potent 2.5-liter turbocharged boxer-four engine producing 305 horsepower and 290 lb-ft of torque, paired exclusively with a six-speed manual transmission, the STI prioritizes driver engagement over outright speed records.

Exterior Styling and Design Enhancements

Subaru’s designers targeted the front fascia for a more aggressive stance in the 2018 model year. The updated grille and headlights create a sharper, more contemporary look while preserving the STI’s unmistakable wide-body silhouette and functional rear wing. New 19-inch dark-gray alloy wheels shod with 245/35R-19 Yokohama Advan Sport V105 tires add to the menacing presence, complemented by adaptive LED headlights and roof rack brackets for versatility.

These changes are subtle yet effective, ensuring the STI stands out from the standard WRX without alienating purists. The body remains practical with four doors and a usable trunk, derived from the Impreza platform, making it suitable for daily duties despite its track-focused demeanor.

Powertrain: Proven Performance with Familiar Foibles

At the heart of the 2018 STI lies the unchanged EJ257 2.5-liter turbocharged flat-four engine, delivering its signature boxer rumble absent in the smaller 2.0-liter WRX unit. Output matches prior years at 305 hp at 6,000 rpm and 290 lb-ft at 4,000 rpm—a modest gain over the 2004 model’s 300 hp, underscoring Subaru’s conservative evolution.

Acceleration testing reveals the STI’s demanding nature. MotorTrend clocked 0-60 mph in 5.7 seconds and a quarter-mile in 14.1 seconds at 98.5 mph, hampered by a tricky launch requiring precise clutch modulation and rev-matching through a notchy shifter. Car and Driver noted a prior test achieving 4.8 seconds, but real-world figures hover around 5.5 seconds, trailing quicker rivals due to launch challenges.

This table highlights the STI’s balanced but not class-leading straight-line speed, where its strengths truly emerge elsewhere.

Chassis and Handling: Where the STI Shines

The 2018 facelift introduces a fully electronic Multi-Mode Driver Controlled Center Differential (DCCD), replacing the prior mechanical-electronic hybrid for swifter torque distribution. Combined with front helical limited-slip and rear Torsen differentials plus brake-based torque vectoring, it enhances traction on pavement, gravel, snow, or wet surfaces.

Suspension retuning and new 19-inch wheels aim for better ride comfort without sacrificing sharpness. MotorTrend’s figure-eight test yielded 25.1 seconds at 0.75 g, comparable to 2015 models and edging the standard WRX. Hydraulic steering (13.3:1 ratio) provides quick, communicative feedback, though on-center feel can be nervous. The STI excels in corners with firm body control and balance, begging for backroads or autocross.

• Grip and Poise: Superior all-wheel-drive system delivers confidence-inspiring traction.
• Ride Quality: Surprisingly compliant for daily use, absorbing bumps without harshness.
• Track Potential: Revised setup widens performance envelope for extended sessions.

Braking Upgrades: Brembo Brilliance

One of the standout improvements is the Brembo brake package: six-piston front and two-piston rear monoblock calipers in greenish-yellow paint, paired with larger 13.4-inch front and 12.8-inch rear cross-drilled rotors. Stopping from 60 mph in 109 feet and 70-0 mph in 158 feet, they offer progressive feel and resistance to fade, earning praise from testers.

These upgrades address prior criticisms, providing the confidence needed for aggressive driving. Even compared to the standard WRX, the STI’s brakes shave distances, proving their worth in repeated hard use.

Interior Comfort and Practicality

The cabin blends sporty firmness with usability. Recaro seats (optional or standard on Limited) offer excellent support, with red seatbelts adding flair. A new STI Sport Design cluster features a color LCD for vital info. The base model includes heated mirrors; the $4,800 Limited adds sunroof, navigation, Harman/Kardon audio, blind-spot monitoring, and power seats—though EyeSight safety tech is WRX-only.

Rear space accommodates adults for short trips, with a folding armrest and cupholders. Trunk capacity suits weekend loads, and the wing spoiler option (lower-profile on Limited) caters to tastes. Noise isolation is decent, but the firm ride transmits some road harshness.

Trims, Pricing, and Special Editions

Starting around $36,000 for the base STI, it undercuts many rivals while packing premium hardware. The Limited trim elevates luxury without diluting performance. A teased Type RA variant promises 310 hp, Bilstein dampers, retuned ECU, and track-focused tweaks like stronger pistons and a freer-flowing exhaust, targeting enthusiasts.

Ownership costs include premium fuel needs and potential turbo maintenance, but Subaru’s AWD reliability shines in adverse weather.

Pros and Cons at a Glance

• Pros: Grippy AWD, strong brakes, engaging manual, versatile all-weather capability, unique boxer sound.
• Cons: Tricky launches, dated powertrain, firm ride on poor roads, no CVT or EyeSight option.

Competitor Comparison

Against the Honda Civic Type R or Volkswagen Golf R, the STI prioritizes all-conditions prowess over peak power. Its 0-60 lags the Type R’s sub-5 seconds but matches in handling fun, especially off-pavement.

Frequently Asked Questions (FAQs)

Is the 2018 WRX STI faster than the standard WRX?

No, test data shows similar 0-60 times, but the STI offers superior handling and brakes.

Does the STI have adaptive cruise control?

No, EyeSight is unavailable; opt for the WRX for driver aids.

What’s new in the 2018 facelift?

Revised styling, electronic DCCD, Brembo brakes, 19-inch wheels, and interior tweaks.

Is the STI suitable as a daily driver?

Yes, its compliant ride and AWD make it versatile, though launches demand skill.

When does the next-gen STI arrive?

Expected around 2020, per contemporary reports.

Final Driving Impressions

The 2018 Subaru WRX STI facelift polishes an already compelling package, excelling where it matters most: twisty roads and low-grip scenarios. While powertrain updates lag, chassis and brake enhancements ensure it remains a driver’s delight. Ideal for enthusiasts valuing character over spec-sheet supremacy, it bridges rally roots with road usability.