The Corvette GTR by Michigan-based tuner Specter Werkes/Sports starts as a standard Z06. For power, the tuners turn to Lingenfelter Performance Engineering for a twin-turbo kit; the 7.0L LS7 now makes a claimed 800 hp through its Corse exhaust system. That's significantly more power than the version we drove back in June.
Specter has added StopTech brakes with slotted rotors and calipers with pistons numbering six front and four rear. The HRE wheels are carbon fiber, weigh 22 lbs each, and come wrapped in Michelin rubber. Painted in BASF Pearl Blue, the Corvette GTR also features Specter's bodywork and plenty of carbon fiber accents, including the headlamp housing, front splitter, and mirrors.

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