Held down by a Cusco twin-disc clutch, this Subaru still makes use of its factory six-speed transmission, a stout unit that can hold up to all-wheel drive abuse and is coveted by every U.S. Subie owner. When this Time Attack runner is ready to hit the racetrack an HKS 16-row oil cooler and SARD radiator help prevent premature meltdown. The driver's eyes keep track of everything using the Stack/SARD RD-1 dash cluster.

Inside, Auto Produce Boss fitted the Spec C with everything needed short of a rollcage and strip down. The seats and steering wheel are Prodrive units, made by Sparco, while the factory seatbelts were dumped in favor of four-point Prodrive harnesses, manufactured by Sabelt. Comfortable enough for the street yet powerful enough for the track the Auto Produce Boss STi Spec C is a beautiful example of how to build a dual-purpose vehicle.

Outside, the Boss Spec C wears bodywork from Varis consisting of a new front bumper, carbon-fiber side skirts, and carbon-fiber rear diffuser. The carbon-fiber rear wing is by Auto Produce Boss and is useful for generating downforce while blazing through the Tsukuba circuit.

Beautiful, matching white 18x8 Prodrive GC-010G forged aluminum wheels frame Prodrive front and factory Brembo rear brakes fit with custom Boss-spec Image Type-C2 brake pads for maximum stopping capability. The suspension is also by famed World Rally Championship-winning tuner Prodrive, fit with 12-kg/mm front and 8-kg/mm rear springs. The tires used on the Boss Spec C are Bridgestone's Potenza RE-01R rubber, which oddly enough, are the same tires used on the Toyota Grand Prix of Long Beach Pro/Celebrity race Scion tCs.

With a tuned turbo motor capable of some serious power, a cockpit fit with grip and comfort, and a suspension setup that isn't too harsh for the streets Auto Produce Boss has assembled one of the finest dual-duty Subarus ever. Building upon the STi Spec C's already potent DNA, Boss has built a car that can commute to the Tsukuba circuit, blast out a few quick laps before lunch, and then head home comfortably. Now that's leading the pack.

Sard (Tanabe Distributor) Prodrive
13401 S. Main St.
Los Angeles
CA  90061
Cusco (Nukabe Automotive Distributor)
JUN (UPFD Distributor) Auto Produce Boss
4879 E. La Palma Ave. Ste. 206
CA  92807
Bridgestone Tire