This 1967 Ford Mustang Fastback was nicknamed “Copperback” after being modified under previous ownership by Ringbrothers of Spring Green, Wisconsin, and was acquired by the owner on BaT in August 2020. The car is finished in Copper Burnt Orange Metallic with unique touches including carbon fiber panels, ground effects, and billet accents, and a custom brown and black leather interior has been installed. Power is provided by a fuel-injected Roush Performance 427ci V8 paired with a Tremec five-speed manual transmission, and the chassis features, a four-link rear suspension, Ridetech adjustable coilovers, Baer four-wheel disc brakes, 19″ iForged wheels, a Currie 9-inch rear axle, and a limited-slip differential. This Ringbrothers Mustang is now offered on dealer consignment at no reserve with a clean California title.
During the initial 2007 project, the car was disassembled and media blasted after being chosen for the Ringbrothers build. The body was customized with shaved drip rails and door handles and a raised dorsal line along the length of the car. Custom carbon fiber hood and trunk panels were fabricated by Gemini Technology Systems, who also provided molds for the lower valence. The lower side scoops were reshaped with a deeper profile, the bumpers were shortened, and custom steel ground effects panels were added. The concave taillight panel was replaced with a flat panel and overlaid with carbon fiber, and openings were added for the exhaust exits.
The body is finished in Glasurit Copper Burnt Orange Metallic, with dark gray on the hood, air dam, side skirts, and rear spoiler. Tinted glass was installed during the build, and the trim around the windshield, rear glass, and side vents was blacked out. Machined billet aluminum accents include the hood and cowl vents, sail panel vent inserts, teardrop hood pin bezels, and front brake ducts, along with the black billet gas cap, side grille air intakes, and taillight surrounds.
The three-piece 19” iForged wheels feature black centers and polished barrels and wear Michelin Pilot Sport tires measuring 255/30 up front and 305/30 out back. The suspension system features a Chris Alston’s Chassisworks Total Control front setup with rear-mounted steering along with a triangulated four-link rear unit. Subframe connectors are fitted and include a bolt-in center support brace that has been painted to match the body. Ridetech adjustable coilovers are utilized all around. The side and rear floor panels were replaced with aluminum, and the rear was mini-tubbed to accommodate the wider wheels. Braking is handled by Baer 6S monoblock calipers with ceramic brake pads over two-piece slotted and drilled rotors.
The interior was re-trimmed in custom upholstery by Steve Pearson of Upholstery Unlimited as part of upgrades carried out during the car’s return to Ringbrothers under previous ownership. Brown and black leather covers custom-molded bucket seats that are fitted with Schroth four-point harnesses. Matching two-tone leather covers the dash, door panels, and Momo steering wheel. The rear deck features leather-wrapped roll hoops, leather side trim, and custom-patterned carpeting, which also covers the lower console, footwells, and trunk area. The headliner, sun visors, and pillars are covered with soft black upholstery, and the floors are protected by carpeted mats. Custom carbon fiber and aluminum accents are positioned throughout the cabin, including door sills that illuminate the word “Copperback” in red. Additional features include an aluminum shift lever with a custom knob, Ford GT toggle switches on the console, push-button starting, power windows, a tilt steering column, Momo pedals, and under-dash door release levers. A custom surround-sound system comprises a Kenwood receiver and Rockford Fosgate acoustic components.
The Roush Performance 427ci V8 features a Dart Iron Eagle block topped with aluminum cylinder heads, an electronic fuel injection system with individual throttle bodies, and ceramic-coated Magnaflow exhaust headers leading to a heat shield-wrapped 3” exhaust system with SpinTech mufflers. Cooling is handled by a custom aluminum radiator and an electric fan. The starter motor is said to have been replaced in 2023.
Power is delivered to the rear wheels through a Tremec five-speed manual transmission and a Currie 9-inch rear axle with a limited-slip differential and 3.55:1 gears.
