Do-It-Yourself Subaru Impreza STI

Subaru Tecnica International, the performance branch of the Japanese automaker, is offering Japanese customers the chance to upgrade their garden-variety Imprezas with a wide range of go-fast adds-ons, from alloy wheels to engine accessories.

The STI Performance Web site lists page after page of goodies for the Impreza, including a number of aero body pieces in carbon fiber, from a front spoiler to side skirts and mirrors.

Customers can order gearshift knobs, wheels and seats, among other items. Prices, of course, are listed in yen.