A 2015 Dodge Viper GTC, featuring a rare twin-turbocharged setup and the sought-after Time Attack 2.0 Package, is now up for auction on BringATrailer (BaT). This Viper, which has logged just 3,400 miles, was initially equipped with factory performance upgrades under the TA 2.0 Package. These include carbon-fiber aerodynamic enhancements, a large fixed rear wing, and advanced suspension and braking components. It also retains its original 8.4-liter VIPER V10 engine, now enhanced with a custom twin-turbo build by Calvo Motorsports, completed after the current owner purchased it in April 2023.
The extensive modifications were part of an $80,000 project carried out by Calvo Motorsports in Austin, Texas, specializing in high-performance builds. The upgrade includes 67mm ball-bearing turbochargers, a dual-core intercooler, a Chill Out radiator, a custom exhaust system, and an Nth Moto triple-carbon clutch. Together, these upgrades boost the Viper’s performance while retaining the car’s original 6-speed manual transmission and limited-slip differential.
This Viper GTC TA 2.0 is finished in Viper White Clear Coat with classic Blue racing stripes, matched with Black Nappa leather and white stitching. Inside, it features bolstered Sabelt bucket seats, Red seat belts, and upscale amenities like an 18-speaker Harman Kardon™ audio system, Uconnect infotainment with navigation, and an Alcantara headliner. The flat-bottom SRT steering wheel houses a 7-inch digital tachometer display that complements the sporty cabin layout.
Other highlights include the Bilstein DampTronic suspension with two driving modes and high-performance StopTech brakes with Brembo® calipers in black with orange Viper lettering. Under the hood, a carbon-fiber structural X-brace spans the engine bay, adding stability and visual flair. Exterior details feature carbon-fiber front splitters, a fixed rear wing, and a double-bubble roof, while black-finished Sidewinder II wheels come wrapped in Toyo Proxes R888R tires.
In addition to the powertrain overhaul, the car has a well-documented service history, including a brake fluid flush in December 2022, and is covered with a clear Carfax report showing no accidents. With its unique blend of factory upgrades and high-performance tuning, this Viper stands out as a collectible, especially for enthusiasts of the TA 2.0 Package and the iconic V10.
The auction on BringATrailer ends Tuesday, November 12 at 4:03 p.m. EDT, providing a limited window to bid on this exceptional twin-turbo Viper GTC.
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