First offered for 2006 in a limited edition production run of 500 units, the Legacy 2.5 GT spec.B returns as a regular production model for 2007, featuring a host of performance and interior enhancements. In addition to the new SI-Drive system, the 2007 spec.B also gains a modified version of the 6-speed manual transmission from the Impreza WRX STI, plus the advanced Vehicle Dynamics Control (VDC) system and a Tire Pressure Monitoring System. The 6-speed transmission is tailored to suit the spec.B's refined driving characteristics and features unique gear ratios and a smoother shifting operation than the version used in the WRX STI.
Like all Subaru models, the 2007 Legacy 2.5 GT spec.B features Symmetrical All-Wheel Drive as standard equipment. The 2.5-liter intercooled turbo Boxer engine in the spec.B produces 243 horsepower @ 6,000 rpm and 241 lb-ft of peak torque @ 3,600 rpm. Subaru Active Valve Control System (AVCS) variable valve timing optimizes power at all engine speeds.
Source: Subaru Press Release