The Subaru WRX STI S209, introduced for the 2019 model year, represents a limited-production, high-performance variant of the facelifted (2018) WRX STI. Specifically designed for the North American market, the S209 was intended to be the most capable and track-focused STI ever offered in the United States. Built upon the VA chassis platform, it aimed to deliver a more visceral driving experience than the standard STI, bridging the gap between the road-going STI and Subaru’s motorsport heritage. Production was strictly limited to 200 units, making it a highly sought-after collector’s item.
Technical Specifications
| Brand | Subaru |
| Model | WRX |
| Generation | WRX STI (facelift 2018) |
| Type (Engine) | S209 2.5 (341 Hp) AWD |
| Start of production | 2019 |
| Powertrain Architecture | Internal Combustion engine |
| Body type | Sedan |
| Seats | 5 |
| Doors | 4 |
| Fuel consumption (economy) – urban | 15.7 l/100 km (15 US mpg, 18 UK mpg, 6.4 km/l) |
| Fuel consumption (economy) – extra urban | 11.2 l/100 km (21 US mpg, 25.2 UK mpg, 8.9 km/l) |
| Fuel consumption (economy) – combined | 13.8 l/100 km (17 US mpg, 20.5 UK mpg, 7.2 km/l) |
| Fuel Type | Petrol (Gasoline) |
| Weight-to-power ratio | 4.6 kg/Hp, 215.7 Hp/tonne |
| Weight-to-torque ratio | 3.5 kg/Nm, 282.7 Nm/tonne |
| Power | 341 Hp @ 6400 rpm |
| Power per litre | 138.8 Hp/l |
| Torque | 447 Nm @ 3600 rpm (329.69 lb.-ft. @ 3600 rpm) |
| Engine layout | Front, Longitudinal |
| Engine displacement | 2457 cm3 (149.94 cu. in.) |
| Number of cylinders | 4 |
| Engine configuration | Boxer |
| Cylinder Bore | 99.6 mm (3.92 in.) |
| Piston Stroke | 79 mm (3.11 in.) |
| Compression ratio | 8.2:1 |
| Number of valves per cylinder | 4 |
| Fuel injection system | Multi-port manifold injection |
| Engine aspiration | Turbocharger, Intercooler |
| Valvetrain | DOHC, DAVCS |
| Engine oil capacity | 4.3 l (4.54 US qt | 3.78 UK qt) |
| Kerb Weight | 1581 kg (3485.51 lbs.) |
| Trunk (boot) space – minimum | 334 l (11.8 cu. ft.) |
| Fuel tank capacity | 60 l (15.85 US gal | 13.2 UK gal) |
| Length | 4620 mm (181.89 in.) |
| Width | 1839 mm (72.4 in.) |
| Height | 1476 mm (58.11 in.) |
| Wheelbase | 2649 mm (104.29 in.) |
| Front track | 1544 mm (60.79 in.) |
| Rear (Back) track | 1554 mm (61.18 in.) |
| Ride height (ground clearance) | 124 mm (4.88 in.) |
| Minimum turning circle (turning diameter) | 12.2 m (40.03 ft.) |
| Drivetrain Architecture | All wheel drive (4×4) |
| Number of gears and type of gearbox | 6 gears, manual transmission |
| Front suspension | Independent coil spring, Transverse stabilizer |
| Rear suspension | Double wishbone |
| Front brakes | Ventilated discs, 340.36 mm |
| Rear brakes | Ventilated discs, 325.12 mm |
| Tires size | 265/35 R19 |
| Wheel rims size | 9.0J x 19 |
INTRODUCTION
The 2019 Subaru WRX STI S209 is a limited-edition performance sedan built on the foundation of the VA-generation WRX STI. It was conceived as a more focused and aggressive version of the already capable STI, aimed at enthusiasts who prioritize track performance and driving engagement. The “S209” designation harkens back to Subaru’s history with limited-run, high-performance models, particularly those developed by Subaru Tecnica International (STI), the motorsports division of Subaru. Unlike previous STI models offered globally, the S209 was exclusively designed and sold in the North American market.
Powertrain & Engine Architecture
At the heart of the S209 lies a modified version of the 2.5-liter turbocharged Boxer engine, designated EJ257. While retaining the same displacement, the engine received significant upgrades to enhance its performance. These included revised pistons, connecting rods, and intake and exhaust systems. The turbocharger itself was also upgraded for increased boost and faster spool-up. The engine produces 341 horsepower at 6,400 rpm and 330 lb-ft of torque at 3,600 rpm. The S209 exclusively came equipped with a six-speed manual transmission, chosen for its direct driver engagement and durability. The transmission features revised gear ratios optimized for acceleration and track use. The engine utilizes multi-port fuel injection and Subaru’s Dual Active Valve Control System (DAVCS) for optimized valve timing and improved efficiency.
Driving Characteristics
The S209 delivers a noticeably more aggressive driving experience compared to the standard WRX STI. The enhanced engine output, combined with the close-ratio six-speed manual transmission, provides strong acceleration throughout the rev range. The S209’s suspension is significantly stiffer, featuring Bilstein dampers and Eibach springs, resulting in reduced body roll and improved handling precision. The steering is also more direct and responsive. While the stiffer suspension can make the ride less comfortable on rough roads, it translates to exceptional control and confidence on a track. The S209’s all-wheel-drive system, a hallmark of Subaru performance cars, provides excellent traction in all conditions. The car feels planted and stable, even when pushed to its limits.
Equipment & Trim Levels
Given its limited-production status and performance focus, the S209 came exceptionally well-equipped. Standard features included Recaro front seats, providing excellent support during spirited driving. The interior also featured unique S209 badging and trim. Exterior enhancements included a more aggressive front bumper, side skirts, rear diffuser, and a prominent rear wing. The S209 also received unique 19-inch BBS alloy wheels. Optional extras were limited, reflecting the car’s already comprehensive specification. A few customization options were available through Subaru dealers, such as different interior color combinations.
Chassis & Braking
The S209’s chassis received substantial upgrades to complement the increased engine output and stiffer suspension. The car features reinforced front and rear subframes for improved rigidity. The braking system was also upgraded with Brembo monobloc calipers and larger rotors, providing enhanced stopping power and fade resistance. The front brakes measure 340.36 mm, while the rear brakes are 325.12 mm. The S209 retains the standard WRX STI’s hydraulic power steering system, which provides excellent feel and feedback. The suspension geometry was also optimized to improve handling balance and reduce understeer.
Market Reception & Comparison
The S209 was met with overwhelmingly positive reviews from automotive journalists and enthusiasts. Critics praised its exceptional handling, powerful engine, and track-focused performance. Compared to the standard WRX STI, the S209 offered a significantly more engaging and rewarding driving experience. However, its stiffer suspension and limited practicality made it less suitable for everyday use. Compared to other high-performance sedans in its price range, such as the Honda Civic Type R, the S209 offered a unique combination of all-wheel-drive traction and raw driving feel. Fuel economy, as expected for a high-performance vehicle, was relatively low, averaging around 17 mpg combined.
Legacy
The Subaru WRX STI S209 has quickly become a highly collectible vehicle. Its limited production run and exceptional performance have driven up its value in the used car market. The S209 represents a high point in the WRX STI’s development, showcasing Subaru’s commitment to performance and driving enjoyment. The powertrain, while not without its quirks (the EJ257 engine is known for its potential for oil consumption), has proven to be relatively reliable when properly maintained. The S209’s legacy is one of a focused, uncompromising performance sedan that continues to captivate enthusiasts and collectors alike. It stands as a testament to Subaru’s dedication to rally-inspired performance and a reminder of a time when driving engagement was paramount.
