From the archive
Subaru BRZ Concept STI- 2011 LA Auto Show
Under the hood, there's a 2.0-liter naturally-aspirated four-cylinder boxer engine which was designed with a square bore and stroke of 86 X 86 mm. Nothing has been said about the vehicle's final output, but previous rumors suggested that the STI version would deliver up to 300 HP. It was also rumored that the BRZ would come with a very low center of gravity and optimal weight distribution. These rumors turned out to be 100% correct with the Subaru BRZ STI engine sitting lower than in any other Subaru model - 4.7 inches lower - and positioned 9.4 inches closer to the center of the chassis.From topspeed.com