With a restyled exterior, wider track and custom performance exhaust, the 2005 TSX A-SPEC Concept showcases the potential of Acura's popular sport sedan. The custom exterior boasts restyled front and rear bumpers with improved ventilation and downforce, two-part carbon-Kevlar underbody diffusers, a carbon-Kevlar rear spoiler and widened fenders and sills. The custom exhaust exits at the center of the rear bumper. Track is increased by 20 mm, and 19-in. wheels with a liquid mercury effect paint are wrapped in Pirelli tires. Track performance is enhanced with Acura advanced performance tuned springs and struts and Brembo brakes with four-piston calipers. The interior styling is a combination of aluminum dash and door inserts and carbon-Kevlar panels on the doors and center console. Recaro driver and front passenger seats are finished in leather and suede and compliment the custom gauge cluster, 3-spoke steering wheel and aluminum pedals.