Peak output should match or come close to the 305-horsepower rating of the outgoing WRX STI, most likely derived from an upgraded version of the regular WRX’s turbocharged and direct-injected 2.0-liter four-cylinder. It’s also possible that a larger 2.5-liter unit may be fitted instead. A six-speed manual is likely to remain the only gearbox option.
We’ll have full details soon, as the covers will come off the new 2015 Subaru WRX STI on January 14. To stay up-to-date on all the happenings at the Detroit Auto Show, be sure to bookmark our dedicated hub. And for more on the 2015 WRX, check out our first drive report.