2003 | Dodge Viper SRT-10 Roadster Twin-Turbo

Dodge's fourth generation Viper SRT-10 arrived for model year 2008 in a league of its own. 10 cylinders, twin side pipe exhaust, a mandatory six-speed transmission, and limited-slip differential assembled in a lethal recipe for track domination. Far from focusing on brute strength alone, the manufacturer's comprehensive product planning dictated improvements to fuel delivery and added variable valve timing in stride with refinement to creature comforts. Leather-wrapped interior surroundings, 300watt 10-speaker audio, power-adjustable pedals, and HID headlamps lent approachability to the car's formidable qualifications.       

 

Offered here in Viper Red over Black/Red leather, this 2003 Dodge Viper SRT-10 Roadster caters to the hardcore. Front and center, its boosted high-displacement heart features modification by Underground Racing and Calvo Motorsports, both highly regarded for their development in the Viper aftermarket. Commissioned by the vehicle's first owner, Underground Racing's full Viper catalog when-new sits underhood—complete with a blueprinted 522ci Stroker plus Twin Turbo Upgrade. High-pressure stainless hardware and custom heat shielding ensure seamless delivery of the twin 76mm turbocharger's forced induction. This Viper's drivability and streetable power is made possible by 4 selectable traction control and boost maps accessed by a console-mounted Greddy boost controller.

 

Between 2019 and 2021, Calvo Motorsports of Austin, Texas retrofitted the vehicle's AEM standalone computer to a John Reed MoTeC system and overhauled the 6-speed manual transmission. Work completed totaled over $21,000 and restored functionality to all gauges for continued use across 93 octane and C16 race gas tunes up to 1300rwhp. This roadster's stealth appeal follows function with Black HRE staggered wheels clad in Toyo Proxes R888R and coil-over suspension ensuring planted road manners. Underneath its black fabric top, interior amenities present close to stock with custom seat upholstery added under the original owner. Now showing 7,975 miles, this top-tier SRT-10 is sold with both a clean title and Carfax report.

 

 

Underground Twin Turbo Upgrades:

 

According to the seller, this Viper was sent to Underground Racing in Charlotte, North Carolina by its original owner to receive a fully blueprinted engine and twin-turbo upgrade. The vehicle was kept in the company's care before the second owner's purchase and subsequent tuning updates and transmission modifications by Calvo Motorsports of Austin, Texas. Now located in Las Vegas, Nevada, this roadster has covered fewer than 300 miles under its current owner. This vehicle's Carfax report confirms three-owner history. 

This vehicle shows wear consistent with its age and mileage according to a third-party Inspection Report. Please review the entire document by clicking "Inspection Report" above. Inspector and seller comments include the following: