Skip to main content

With 341 horsepower, the WRX STI S209 is the most powerful Subaru ever

Subaru imports some entertaining performance cars to the United States, but it usually saves some of the best stuff for its home market of Japan. At the 2019 Detroit Auto Show, Subaru gave U.S. enthusiasts a taste of what they’ve been missing with the WRX STI S209 — the latest in a line of special-edition models that have never been sold here before.

Subaru has offered S20(X) series cars in Japan since the S201 of 2001. These upgraded versions of the WRX STI typically feature more power and other performance upgrades, and the S209 is no different. The 2.5-liter turbocharged boxer-four engine produces 341 horsepower, compared to 310 hp for a standard U.S.-spec WRX STI. Subaru didn’t supply a torque figure for the S209, but said the special edition is its most powerful production model ever.

The extra power comes courtesy of a larger turbocharger, lighter and stronger forged pistons and connecting rods, a higher-flow fuel pump working with larger fuel injectors, and a less-restrictive exhaust system. Subaru also brought back a cult-classic feature from the 2004-2007 STI (the first version sold in the U.S.): a driver-controllable system that sprays water on the intercooler. This lowers the temperature of air going into the engine, which helps make more power. The only available transmission is a six-speed manual transmission and, naturally for a Subaru, all-wheel drive is standard.

Subaru also claims that the S209 will handle better than a standard STI, thanks to upgraded suspension and structural reinforcements. The S209 also rides on model-specific Dunlop GT600A summer tires, which are wider than the standard STI tires. Brembo brakes with cross-drilled rotors complete the mechanical package.

The S209 looks more aggressive thanks to fender flares that widen the body by 1.7 inches (helping accommodate the wider tires), and aerodynamic aids like a big rear spoiler and front dive planes. Vents in the front fenders aid cooling, while vents in the rear fenders help decrease aerodynamic drag, according to Subaru. The S209 rides on 19.0-inch BBS alloy wheels.

On the inside, the S209 gets a D-shaped steering wheel and Recaro seats. S209 badges throughout the interior and exterior attest to the car’s special nature, as does a serial number badge on the center console.

The Subaru WRX STI S209 goes on sale in the U.S. later this year, with pricing to be revealed closer to that time. Subaru only plans to build “around” 200 cars, which is substantially less than the automaker’s last special-edition STI, the Type RA. The S209 shares the Detroit spotlight with the new Toyota Supra, making this a vintage year for Japanese performance cars.

Editors' Recommendations

Stephen Edelstein
Stephen is a freelance automotive journalist covering all things cars. He likes anything with four wheels, from classic cars…
Mercedes G580 electrifies an off-road icon
Mercedes-Benz G580 with EQ Technology front quarter.

The Mercedes-Benz G-Class is Germany’s answer to Jeep, Hummer, and Land Rover. Combining traditional Mercedes luxury with serious off-road capability, the G-Class, or Geländewagen, as it’s formally known, is right at home on the trail or the valet stand. And now it’s going electric.

Mercedes has been teasing an electric G-Class since 2021, and now it’s finally arrived in the form of the G580 with EQ Technology. Expected to go on sale in the U.S.as a 2025 model alongside refreshed gasoline G-Class variants, it uses electric powertrain tech to update a classic design and enhance off-road capability.

Read more
Lamborghini’s Urus SE plug-in hybrid tries to do it all
Lamborghini Urus SE front quarter.

Lamborghini built its reputation with outrageous supercars like the Miura, Countach, and Diablo, but today its bestseller is the Urus SUV. And a new plug-in hybrid version of that car could make or break the automaker’s push to hybridize its entire lineup by the end of 2024.

Debuting at the 2024 Beijing Auto Show, the Lamborghini Urus SE is the automaker’s second plug-in hybrid, following the Revuelto supercar unveiled in 2023, and precedes a plug-in hybrid replacement for the Huracán, which will be unveiled later this year.

Read more
Fake engine noises in electric cars need to die
Ford Mustang Mach-E Rally driving on a dirt road.

You finally get that notification that the electric car you ordered months ago is ready for pickup. You get to the location, sit in the car and turn it on. Pulling out into the road, you hear something -- a strange noise you didn't quite expect. You expected the sweet quietness of a full electric vehicle. But is that ... engine noise?

It is and it isn't. As humans, we've been so used to the sound of an engine for so long that carmakers think we've associated that low-frequency rumble with performance and quality. So, what are they doing? That's right -- they're pumping fake engine noises through the speakers in your electric car.

Read more