The Subaru WRX STI is getting a new engine in 2022 and its the engine out of an SUV? how can this 260hp FA24 from the Ascent become the 400hp busier of a boxer that will power the new JDM Rally bred beast? We break this block down to its basic parts and explain just how Subaru is gonna get more horsepower than they’ve ever given the STI out of this new platform. so stop in for an inside look at Subaru’s new FA24 Engine.