The dramatic exterior styling changes reflect the major changes under the skin for the 2008 Subaru Tribeca. A new 3.6-liter boxer engine has been designed with a goal of improving low-end torque and also lowering consumer running costs with a change to regular unleaded fuel. The larger engine displacement has increased engine torque to 247 lb.-ft., up from 215, and horsepower to 256 from 245, providing improved low-end torque without sacrificing high-rpm power. The new engine package, despite the larger engine size, not only maintains emissions levels but delivers improved fuel efficiency in real world driving situations. To achieve these goals without affecting engine packaging, a unique shortened con rod was created to allow for a new and larger displacement engine without increasing the physical dimensions of the power unit.

Source: [url=http://www.trucktrend.com/autoshows/coverage/163_news070406_2008_subaru_tribeca]TruckTrend Magazine[/url]