Subaru WRX STi Overview
The Subaru WRX STi is a Sedan produced from 2014 to 2021 in the supplied catalogue data. The range represents one generation, including its restyling, and contains three listed versions across the two production phases. Every version uses a turbocharged Gasoline engine with 4 Opposite cylinders, a 6-speed Manual gearbox, and AWD.
The Subaru WRX STi is a Sedan produced from 2014 to 2021 in the supplied catalogue data. The range represents one generation, including its restyling, and contains three listed versions across the two production phases. Every version uses a turbocharged Gasoline engine with 4 Opposite cylinders, a 6-speed Manual gearbox, and AWD. Available outputs are 300 hp or 305 hp, while listed engine displacement is 1998 cc or 2457 cc.
Subaru WRX STi Generations
The 1 generation was produced from 2014 to 2017 as a Sedan and offered two versions: 2.0 MT with 305 hp and 2.5 MT with 300 hp. The 1 generation, restyling ran from 2017 to 2021, remained a Sedan, and offered one version: 2.5 MT with 300 hp. Although the restyled car appears as a separate production phase in the data, it belongs inside the same generation rather than representing another generation.
Subaru WRX STi Engine Specs and Horsepower
| Production phase and version | Power | Torque | Displacement | Fuel | Cylinders | Layout | Boost | Gearbox | Drive |
|---|---|---|---|---|---|---|---|---|---|
| 2014–2017 2.0 MT | 305 hp at 5600 rpm | 422 Nm at 2000 rpm | 1998 cc | Gasoline, 95 | 4 | Opposite | Turbo | 6-speed Manual | AWD |
| 2014–2017 2.5 MT, 300 hp | 300 hp at 6000 rpm | 415 Nm at 4400 rpm | 2457 cc | Gasoline, 95 | 4 | Opposite | Turbo | 6-speed Manual | AWD |
| 2017–2021 2.5 MT, 300 hp | 300 hp at 6000 rpm | 415 Nm at 4000 rpm | 2457 cc | Gasoline, 95 | 4 | Opposite | Turbo | 6-speed Manual | AWD |
The 2014–2017 2.0 MT has a front, longitudinal engine, Direct injection (direct), a compression ratio of 10.6, and an 86 × 86 bore-and-stroke measurement. Each cylinder has 4 valves.
The 2014–2017 2.5 MT has a front, longitudinal engine, Distributed injection (multi-point), a compression ratio of 8.2, and a 99.5 × 79 bore-and-stroke measurement. Each cylinder has 4 valves.
The restyled 2017–2021 2.5 MT also has a front, longitudinal engine, but its fuel system is Direct injection (direct). Its compression ratio is 8.2, its bore-and-stroke measurement is 99.5 x 79, and each cylinder has 4 valves.
All three Subaru WRX STi versions meet Euro 5 specifications. Engine oil requirements, engine sound, engine cost, engine problems, reliability, replacement engines, and engine-swap compatibility are not measured in the supplied data.
Subaru WRX STi Performance and Fuel Economy
| Production phase and version | 0–100 km/h | Top speed | City consumption | Highway consumption | Combined consumption |
|---|---|---|---|---|---|
| 2014–2017 2.0 MT | not measured | not measured | not measured | not measured | not measured |
| 2014–2017 2.5 MT, 300 hp | 5.2 seconds | 255 km/h | 14 L/100 km | 8.4 L/100 km | 10.4 L/100 km |
| 2017–2021 2.5 MT, 300 hp | 5.2 seconds | 250 km/h | not measured | not measured | 8.9 L/100 km |
The catalogue provides 0–100 km/h acceleration rather than 0–60 mph. Therefore, a Subaru WRX STi 0–60 mph time is not measured in the data and cannot be stated from these specifications.
The two 2.5 MT versions both reach 100 km/h in 5.2 seconds. The 2014–2017 2.5 MT has a listed top speed of 255 km/h, which is 5 km/h higher than the restyled 2017–2021 2.5 MT at 250 km/h. In combined driving, the restyled 2.5 MT is listed at 8.9 L/100 km, which is 1.5 L/100 km lower than the earlier 2.5 MT figure of 10.4 L/100 km. City and highway figures for the restyled version are not measured.
Subaru WRX STi Dimensions and Weight
| Production phase and version | Kerb weight | Gross weight | Ground clearance | Fuel tank | Wheel sizes |
|---|---|---|---|---|---|
| 2014–2017 2.0 MT | not measured | not measured | 135 mm | 60 L | not measured |
| 2014–2017 2.5 MT, 300 hp | 1509 kg | not measured | 135 mm | 60 L | not measured |
| 2017–2021 2.5 MT, 300 hp | 1575 kg | 2000 kg | 135 mm | 60 L | not measured |
All versions have 135 mm of ground clearance and a 60 L fuel tank. The restyled 2.5 MT has a kerb weight of 1575 kg, making it 66 kg heavier than the earlier 2.5 MT at 1509 kg. Gross weight is measured only for the restyled 2.5 MT, at 2000 kg. Exterior length, width, height, and wheel sizes are not measured in the supplied data.
Every version has Independent, spring front and rear suspension. All use Ventilated disc front brakes. The 2014–2017 2.0 MT has Disc rear brakes, while both 2.5 MT versions have Disc ventilated rear brakes.
Which Subaru WRX STi Version to Choose
Choose the 2014–2017 2.0 MT if the priority is the highest listed output and torque. Its 305 hp exceeds both 2.5 MT versions by 5 hp, while its 422 Nm exceeds their 415 Nm by 7 Nm. Its peak torque also arrives at 2000 rpm, compared with 4400 rpm for the 2014–2017 2.5 MT and 4000 rpm for the restyled 2.5 MT. However, acceleration, top speed, consumption, and weight for the 2.0 MT are not measured.
Choose the 2014–2017 2.5 MT if the priority is the highest measured top speed. It combines 300 hp and 415 Nm with a 5.2-second 0–100 km/h time and a top speed of 255 km/h. It is also the only version with complete city, highway, and combined consumption figures: 14, 8.4, and 10.4 L/100 km respectively.
Choose the restyled 2017–2021 2.5 MT if the priority is the lowest measured combined consumption. It retains 300 hp, 415 Nm, and the 5.2-second 0–100 km/h result, while its combined figure falls to 8.9 L/100 km. Its top speed is 250 km/h, and its 1575 kg kerb weight is 66 kg above the earlier 2.5 MT. Price, cars for sale, local availability, and ownership costs are not measured, so they cannot be used to compare these versions.