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Subaru WRX S4 gets big power bump in Japan

A month after originally teasing it, Subaru is finally unveiling its WRX S4 model for Japan. It's a bit more than just a plush take on the sport sedan, because Subaru is fitting a more powerful version of the 2.0-liter, turbocharged boxer four-cylinder engine than we get on these shores.
The company says that S4 stands for "'Sports performance', 'Safety performance', 'Smart driving' and 'Sophisticated feel," and it certainly looks like this Rex ticks all of those boxes. The most surprising feature is the Japanese model's 2.0-liter turbo engine boasting 296 horsepower (221 kilowatts) and 295 pound-feet (400 Newton-meters) of torque in this application. That's quite a healthy upgrade over the 268 hp and 258 lb-ft that Americans get in the standard WRX, and it's even nipping at the heels of the 305 hp and 290 lb-ft from the STI with a 2.5-liter mill that we get over here.
While extra power is always welcome, enthusiasts might not be so thrilled that Subaru's Sport Lineartronic Continuously Variable Transmission is the sedan's only available gearbox. However, it offers a simulated eight-speed shifting mode when drivers notch the car into Sport# driving mode. Of course, the S4 also packs Subie's trademark all-wheel drive with Vehicle Dynamics Control and Active Torque Vectoring as standard.

2018 Subaru WRX and WRX STI pair updated looks with performance upgrades

For 2018, Subaru has given the WRX and WRX STI a mild refresh on the outside, and a few significant tweaks under the skin. Starting with the exterior, the lower grille openings on both models have been enlarged and given a bit of extra black trim for a more aggressive look. In fact, the change is a bit reminiscent of the dearly departed Mitsubishi Evo, with the black trim of the lower center grille extending to the bottom of the bumper. The WRX Limited and all STI models also get turning LED headlights, and the STI gets bigger 19-inch wheels. The interior also features subtle tweaks including a larger screen in the instrument panel for all models, as well as thicker door glass and foam in the windshield header to the make the car quieter. Both models also now come with roof rack mounting brackets, a new rear armrest with cupholders, and, according to Subaru, improved interior materials. And the WRX and STI are also now available with eight-way power adjustable Recaro seats. The Recaros are standard on the top trim STI, optional on the standard STI, and available in the new Performance Package for WRX models. This brings us to perhaps the biggest update, that aforementioned WRX Performance Package. In addition to the Recaro seats, it comes with upgraded brake pads covered in bright red calipers. The package also eliminates the moonroof, which hardcore enthusiasts know will save weight up high. The STI gets a notable brake upgrade. New Brembo brakes feature six-piston calipers at the front, and two-piston units at the back, and they're all painted a vivid yellow hue. Those calipers act on bigger, drilled rotors using equally enlarged brake pads. Subaru also retuned the car's Driver Controlled Center Differential (DCCD). Both the WRX and STI also have retuned suspension all around. If this all sounds great to you, you should be able to pick one up at your local Subaru dealer this spring. Related Video:

Subaru confirms 2015 WRX STI to grace Detroit show stand

Now that we've seen and driven the 2015 Subaru WRX, it's time to set our sights on the car's more powerful and traditionally massively winged counterpart: the STI. And while a few rumors about the new STI have already leaked, Subaru today confirmed that we'll be seeing the hotter 'Rex at the Detroit Auto Show later this month. Hot diggity.
Last we heard, the new STI will still use a turbocharged, 2.5-liter boxer-four (remember, the standard WRX uses a version of the 2.0-liter engine found in the Forester) producing something like 300 horsepower and 290 pound-feet of torque. What's more, don't expect the STI to hatch a five-door variant - Subaru recently told us that there are no plans to offer anything beyond a sedan bodystyle for both versions of the WRX. Sad trombone, we know.
That said, if our time with the 2015 WRX sedan is anything to go by, this new STI should be pretty rad. The new WRX is significantly sharper than the outgoing model (in terms of driving dynamics, anyway - it's still a pretty ugly little thing), and we fully expect the STI to be a bulgier, harsher, more powerful and aggressive version of the already awesome street-legal rally car. We're just hoping it will be offered with WRC-correct gold wheels, too.