Fuji Heavy Industries, parent company of Subaru, has announced that it will submit a homologation application to the FIA for the Impreza WRX STi Spec C to rally as a Group N vehicle in 2006. Group N cars are known for being closest in spec to their production based counterparts and are regulated by strict FIA limitations. FHI has pledged to produce 1,000 units of the Spec C, which is the minimum requirement for Group N classification. The car is about 15 lbs. lighter than a standard STi due to lighter glass, thinner roof construction and an aluminum trunk lid. It also features reinforced strut tower braces, a rear crossbar and other additions to improve chassis rigidity, as well as an intercooler water sprayer and air-cooled engine oil cooler. Hit the jump for more pics.