Don’t look for the new 2.0-liter turbocharged FA Boxer engine in the 2018 Subaru WRX STI. It looks like the 2018 STI will just be getting a mild refresh. It will still be powered with the same 2.5-liter turbo boxer, a source close to Subaru told Motoring recently. True to Subaru’s life-cycle of five years, it will likely be the 2020 MY before the WRX and WRX STI get a full remodel and a new engine.
It looks like 2020 will be when the WRX/STI rides on the new Subaru Global Platform. The source told Motoring, “We would love to have the WRX on the new platform, because the car would be a lot better, but the 2018 will be a facelift only.”
The 2.0-liter FA will have to wait
The source said it would take too much time to properly develop and tune the performance STI engine to get it ready for the 2018 model year. We aren’t sure why, because the Japan-only 2017 WRX STI S207 already uses the 2.0-liter turbo FA producing 328 PS (323hp). So we know the engine is ready-to-go.
The Subaru source went on to say, “It’s not the cost, but everything goes through a production cycle. You can’t shorten that production cycle, there’s many things to consider such as durability testing and likewise. It’s not as simple as taking the turbo engine out of one car and presto, off you go. You’re talking about complete suspension tune and a development team. It’s a big process.”
For now, it looks like the US-spec 2018-2019 Subaru WRX STI will get a mild refresh and stay with the 2.5-liter boxer mill. Look for the 2020 Subaru WRX STI to ride on the new Subaru Global Platform with a newly-developed 2.0-liter turbo engine. “With this new platform and the turbo engine in it, you could do a lot of things,” the engineer hinted.
Photo credit: Subaru