2018 Subaru WRX STI Base
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Unverified
All photo credits
- Photo: Subaru WRX STI (IV) – Frontansicht, 3. Oktober 2016, New York by © M 93, CC BY-SA 3.0 de, via Wikimedia Commons
- Photo: 2014 Subaru WRX STi 2.5T (52772073050) by Rutger van der Maar, CC BY 2.0, via Wikimedia Commons
- Photo: The side sill of Subaru WRX STI (VAB) by Tokumeigakarinoaoshima, CC0, via Wikimedia Commons
- Photo: 2015 Subaru WRX STi Type UK Symetrica 2.5 Rear by Vauxford, CC BY-SA 4.0, via Wikimedia Commons
- Photo: The interior of Subaru WRX STI Type S 2017 year model by Tokumeigakarinoaoshima, CC BY-SA 4.0, via Wikimedia Commons
The 2018 Subaru WRX STI Base is a 310-hp 2.5-liter turbocharged with a 6-speed manual and all-wheel drive. It starts at $36,095 MSRP and is rated at 19 mpg combined.
It makes 310 horsepower at 6,000 rpm and 290 lb-ft of torque at 4000-5200 rpm. EPA fuel-economy estimates are 16 mpg city and 22 mpg highway (19 mpg combined).
The WRX STI measures 180.9 inches long on a 104.3-inch wheelbase and has a curb weight of 3,450 lb.
| Spec | Value |
|---|---|
| Vehicle | |
| Body Type | Sedan |
| Powertrain | Gas |
| Price | |
| MSRP | $36,095 |
| MSRP with Destination | $36,955 |
| Destination Charge | $860 |
| Engine | |
| Engine Type | 2.5L turbocharged/intercooled SUBARU BOXER 4-cylinder, DOHC |
| Displacement | 2.5 L |
| Boost Pressure | 16.2 psi |
| Horsepower | 310 hp @ 6,000 rpm |
| Torque | 290 lb-ft @ 4000-5200 rpm |
| Valvetrain | DOHC, 4 valves/cyl, DAVCS variable valve timing |
| Bore and Stroke | 99.6 x 79.0 mm |
| Compression Ratio | 8.1:1 |
| Injection Type | Sequential multi-port fuel injection (MFI) |
| Drivetrain | |
| Drive Type | Symmetrical AWD with Multi-Mode DCCD |
| Differential Type | Multi-Mode DCCD center; helical LSD front; TORSEN LSD rear |
| Transmission | |
| Transmission | 6-speed manual |
| 1st Gear | 3.636 |
| 2nd Gear | 2.235 |
| 3rd Gear | 1.59 |
| 4th Gear | 1.137 |
| 5th Gear | 0.971 |
| 6th Gear | 0.756 |
| Reverse | 3.545 |
| Final Drive | 3.9 |
| Fuel Economy | |
| City | 16 MPG |
| Highway | 22 MPG |
| Combined | 19 MPG |
| Recommended Fuel | 91 AKI min / 93 AKI recommended |
| Tank Capacity | 15.9 gal |
| Suspension | |
| Front Suspension | Inverted struts w/ forged aluminum-alloy lower A-arms, coil springs |
| Rear Suspension | Double-wishbone w/ coil springs and damper units, stiffener bar |
| Front Stabilizer Bar | 24mm |
| Rear Stabilizer Bar | 20mm |
| Turning Diameter | 36 ft |
| Brakes | |
| Front Brake Calipers | Brembo 6-piston monoblock |
| Front Brake Disc | 13.4 in. ventilated, cross-drilled |
| Rear Brake Disc | 12.8 in. ventilated, cross-drilled |
| Tires & Wheels | |
| Wheels Front | 19 x 8.5-in. |
| Wheels Rear | 19 x 8.5-in. |
| Tires Front | 245/35R19 89W |
| Tires Rear | 245/35R19 89W |
| Dimensions & Weight | |
| Length | 180.9 in |
| Width | 70.7 in |
| Height | 58.1 in |
| Wheelbase | 104.3 in |
| Front Track | 60.2 in |
| Rear Track | 60.6 in |
| Ground Clearance | 4.9 in |
| Cargo Volume | 12 ft³ |
| Curb Weight | 3,450 lbs |
| Interior | |
| Headroom Front | 39.8 in |
| Headroom Rear | 37.1 in |
| Legroom Front | 43.3 in |
| Legroom Rear | 35.4 in |
| Shoulder Room Front | 55.6 in |
| Shoulder Room Rear | 54.2 in |
| Hip Room Front | 52.1 in |
| Hip Room Rear | 53.1 in |
Similar cars
Rivals to the 2018 Subaru WRX STI Base with similar size, power and price from around the same years.
Safety & Recalls
NCAP safety ratings
Tested, but no star ratings were published (2018 Subaru WRX 4 DR AWD).
Recalls
2 recalls on file with NHTSA for the 2018 Subaru WRX. Not every recall applies to every trim or VIN — check yours at nhtsa.gov/recalls.
Jul 21, 2022 · EXTERIOR LIGHTING:BACK UP LIGHTS:SWITCH
Subaru of America, Inc. (Subaru) is recalling certain 2015-2021 WRX vehicles. The backup light switch may corrode and become inoperative, which can result in the backup lights not illuminating and the rearview camera image not displaying when the vehicle is in reverse.
Consequence: Inoperative backup lights and an inoperative rearview camera can reduce vehicle visibility and driver awareness, increasing the risk of a crash.
Remedy: Dealers will inspect and replace the backup light switch, as necessary, free of charge. Owner notification letters were mailed September 16, 2022. Owners may contact Subaru's customer service at 1-844-373-6614. Subaru's number for this recall is WRE-22.
NHTSA campaign 22V522000
Jul 29, 2021 · FUEL SYSTEM, GASOLINE:DELIVERY:FUEL PUMP
Subaru of America, Inc. (Subaru) is recalling certain 2019-2020 Ascent, 2018 Forester, 2018-2020 Impreza, Legacy, Outback, 2018-2019 BRZ, WRX, and Toyota 86 vehicles. The low-pressure fuel pump inside the fuel tank may fail.
Consequence: Fuel pump failure can cause an engine stall while driving, increasing the risk of a crash.
Remedy: Dealers will replace the low-pressure fuel pump, free of charge. Owner notification letters were mailed September 24, 2021. Subaru and Toyota owners may call customer service at 1-844-373-6614. Subaru's number for this recall is WRG-21.
NHTSA campaign 21V587000
2 owner complaints to NHTSA for the 2018 Subaru WRX STI
Owner Complaints
2 owner complaints filed with NHTSA for the 2018 Subaru WRX STI (1 mention a crash, 1 an injury). See all on nhtsa.gov
| Air Bags | 1 |
| Exterior Lighting | 1 |
Complaints are unverified reports submitted to NHTSA by owners. They cover the whole model year, not a specific trim, and a count alone doesn't show how common a problem is.
Source: US National Highway Traffic Safety Administration (nhtsa.gov), matched as 2018 SUBARU WRX. US-market vehicles only; data cached for up to 7 days.