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2021 Subaru WRX STI to pack 400 horsepower?

The next-generation Subaru WRX STI may boast as much as 400 horsepower from a re-tuned, 2.4L turbocharged boxer engine, making it the most powerful factory STI ever to be offered in America.  Forbes reports that an upgraded version of the engine currently offered in the three-row Subaru Ascent crossover will power the new model, rather than the 2.0-liter unit that powers the current WRX or the 2.5L found in the current STI.   According to the report, which cites an unnamed source close to Subaru, the company's engineers are hard at work beefing up the FA24 turbocharged boxer to coax 400 horses and 361 pound-feet of torque from an engine that currently offers just 260 horsepower and 277 lb-ft of torque in family-hauling tune.  While Subaru has been building high-output WRX and STI models for its home market for decades, this would be the first time a 400-horsepower STI would be offered for sale in the U.S. In fact, it would become the most powerful Subaru sold here, period. That honor currently belongs to the 341-horsepower 2019 STI S209, which is incredibly rare (and correspondingly expensive). It followed closely on the heels of the STI Type RA, which was similarly difficult to obtain, but not nearly as powerful or expensive.  Limited (as its name suggests) to just 209 units, the S209 was offered for only one model year at an eye-watering MSRP of $64,880. Customers are still taking delivery of their cars, as STI's tuning shop can only crank out a small handful per day. If it seems like Subaru has been taking its sweet time introducing a new WRX and STI, that's because development of the hotter models diverged from that of the base Impreza prior to the launch of the latter's latest generation. Subaru considers them independent models, and while they still share platform commonalities, they are no longer treated as a single product line. Current models are still loosely based on the last-generation Impreza, and the best hint we have as to the future of the WRX and STI is the Viziv Performance STI concept, which debuted at the Tokyo Auto Salon back in 2018. Related Video: This content is hosted by a third party. To view it, please update your privacy preferences. Manage Settings.

Subaru WRX STI S209 brings wider body, 341 hp, gold wheels to Detroit

With the Subaru WRX STI S209, "S" finally comes to the United States. Subaru Tecnica International created the S201 in 2000, but this ninth take on the theme — inspired by the class-winning WRX STI Nurburgring Challenge racer — is the first to make it our way. Unlike the last special edition we got here, the Type RA, this one comes with a notable power boost: 341 horsepower instead of the 310 ponies in the regular WRX STI. The muscle comes courtesy of a larger compressor and turbine in the HKS turbocharger, and 1.8 pounds more boost pressure. Since the S209 is the most powerful in-house model STI has ever built, the tuning arm didn't stop there. The EJ25 boxer gets air from a new intake duct, induction box with conical air filter, and a silicone turbo inlet duct. Paddles on the steering wheel control a system that sprays water on the intercooler to reduce air temperature, a feature last seen on the WRX STI from the 2004 to 2007 model years. An old-fashioned six-speed manual controls the transmission.The engine gets its fuel from a high-flow fuel pump that feeds larger injectors. Torque hasn't changed from 290 pound-feet, but there's 10 percent more torque at 3,600 rpm. Airflow through the mufflers is 17 percent freer. The cans also are 4.1 pounds lighter and terminate in four-inch pipes. Subaru makes no mention of any other S209 weight loss, but the looks and the "focus on high-performance driving" should make themselves known. STI widened the front and rear track by 0.6 inches, and punched out fenders with aero-aiding canards make the car 1.7 inches wider. The roof and rear wing are made of carbon fiber. Instead of the 245/35 R19 wheels on the series WRX STI, the S209's forged BBS alloys wear 265/35 Dunlop GT600A summer tires, which we're told can handle max lateral grip beyond 1 G. Behind those wheels, six-piston monoblock Brembo calipers with high-friction pads clamp cross-drilled steel rotors in front, two-piston monoblock calipers in back. Stiffer coil springs wrap retuned Bilstein dampers, the suspension aided in its work by reinforced front crossmember and rear subframe, a longitudinally-flexible strut tower bar in front, flexible draw stiffeners front and back, and a 20-millimeter rear stabilizer bar. STI programmers recalibrated the SI-Drive system's three driving modes: Intelligent, Sport, and Sport Sharp.

Toyota and Subaru file patents for performance FR-S and BRZ

People have longed for a more powerful version of the Subaru BRZ, Scion FR-S, and Toyota GT86 since the triplets arrived on the market. So far, neither partner in the deal has launched a model to fully satiate that hunger. However, the Japanese patent office recently approved documents from Toyota for the design of a vehicle that looks just like the Subaru STI Performance Concept (pictured above). According to AutoGuide, the filing also gives Fuji Heavy Industries credit for the design. The STI Performance Concept debuted at this year's New York Auto Show as an early step in STI's attempt to expand its reach here. The BRZ-derived coupe featured a body with a ground-scraping front bumper, tweaked headlights, wider fenders, a massive rear wing, and diffuser with a center-exit exhaust. All of these elements also show up on the patent renderings. The concept was just as exciting under the hood because STI installed a 2.0-liter, turbocharged boxer four-cylinder from its GT300 racer, and upgrades for the chassis, suspension, and brakes came from the Japanese market's BRZ tS. While the coupe made hearts race, the company was clear it didn't necessarily plan to build the model. Patent filings aren't a guarantee for production, and even if this one does arrive in showrooms, it might not come to the US. That's because Subaru and Toyota have a history of creating Japan-exclusive versions like the tS or Style Cb. That being said, spy shots have revealed a camouflaged GT86 testing in Europe, and rumors indicate more power from the engine. Subie's boss has even confirmed the existence of a partnership to create a next-gen model. Related Video: