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2022 Subaru WRX STI Expected With FA24 2.4-Liter Turbo Boxer Engine, 400 HP

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It’s still not known if the all-new WRX STI will arrive for the 2021 or 2022 model year, but sources close to Subaru are suggesting a different powerplant for the rally-bred sedan. The four-cylinder turbo boxer introduced by the Ascent mid-size crossover is the culprit, expected with “no less than 400 horsepower and 361 pound-feet of torque.”

The specifications inside the quotation marks come from Forbes, which highlights that the FA24 was chosen over “stricter fuel economy and emissions regulations.” Word has it the next-gen BRZ will get the FA24 as well but without forced induction.

Turning our attention back to the Subaru Tecnica International, the newcomer “will employ a reinforced crankshaft and pistons, optimized timing balance, fine-tuned valves and intake ports, and boost pressure will be tweaked.” These modifications should help the FA24 in the WRX STI differentiate itself from the engine shared by the Ascent, Legacy, and Outback, producing 260 horsepower and 277 pound-feet as standard.

Forbes further highlights that Subaru’s engineers have benchmarked the hi-po engine with the 2.0-liter turbo inline-four motor from Mercedes-AMG, the heart of the 45 series. The M139 in the fourth generation of the A-Class is available with up to 416 horsepower and 369 pound-feet of torque, ludicrous numbers for a single-turbo setup.

From an aesthetic standpoint, the WRX STI is likely to get Subaru Viziv Performance Concept styling cues for the exterior. Revealed in the flesh at the 2017 Tokyo Motor Show, the concept cranks the Dynamic x Solid design philosophy up to eleven thanks to the hawkeye headlights, forward-thrusting body, and quad exhaust system.

Viziv – stylized as VIZIV – is Subaru for Vision for Innovation. An updated concept was shown at the Tokyo Auto Salon 2018, and on both occasions, the Japanese automaker didn’t say a word about what kind of engine is fed by that huge hood scoop.

Last, but certainly not least, Forbes looks forward to a sub-$50,000 price tag for the all-new WRX STI. The 2020 model year for the United States can be yours from $36,995 excluding destination and handling, featuring a 2.5-liter turbo boxer. The EJ series that includes the EJ25 dates back to the late 1980s, and the EJ20 of the WRX STI for Japan has already been discontinued.
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About the author: Mircea Panait
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After a 1:43 scale model of a Ferrari 250 GTO sparked Mircea's interest for cars when he was a kid, an early internship at Top Gear sealed his career path. He's most interested in muscle cars and American trucks, but he takes a passing interest in quirky kei cars as well.
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