For Sale at Auction: 1990 Porsche 911 Carrera 4 in Columbus, Ohio

This custom 1990 Porsche 911 Carrera 4 was modified by Throtl of San Diego in the early 2020s and is powered by a turbocharged 3.6-liter M64 flat-six engine modified with a Protomotive turbocharger kit and intercooler. The engine is paired with a five-speed manual transaxle, with power sent to all four wheels through the Carrera 4 drivetrain. A replacement turbocharger and boost controller were installed in 2025. Additional engine-related work included dyno-tuning, an ECU upgrade, repair of the knock sensor harness, installation of Bosch Double Fire ignition coils and a distributor block-off plug, replacement of the fuel pump and relay, fuel pressure regulator, fuel injectors, spark plugs and battery, as well as resealing the front crankcase and replacing the timing cover gaskets. A custom exhaust system was installed during the build, and the clutch and flywheel were replaced in 2023. Suspension modifications consist of Silvers Neomax adjustable coilovers, an RSR-style two-piece strut bar, Rennline RS-style spring plates and replacement front sway bar links installed in 2025. Stopping is handled by four-wheel ventilated disc brakes with ABS. The car rides on custom 18-inch Braid multi-piece wheels with Anthracite-finished centers and polished barrels wrapped in staggered Falken Azenis tires. Originally finished in Linen Gray Metallic, the car was repainted in Light Blue Metallic and modified with wide bodywork, including bolt-on fender flares, side skirts and Turbo-style bumper covers. Exterior features include a 993 Club Sport-style rear wing with carbon-fiber end plates, 9Eleven headlights, LED taillights, clear front turn-signal lenses, front brake ducts, ventilated rear quarter acrylic windows, Porsche graphics, a Euro-style front license plate, sunroof, Turbo 3.6 badging and a single exhaust outlet. The cabin was stripped of its sound-deadening material and fitted with Sparco fixed-back bucket seats trimmed in black fabric with multi-point harnesses. Additional interior features include a bolt-in roll bar, Rennline RS-style carpet kit, drilled Rennline floorboards, Turbo-style sill covers, Alcantara-covered dash, short shifter with a balsa wood shift knob, Pioneer CD stereo, Kicker speakers and custom RS-style door panels. A Carbontastic steering wheel fronts VDO gauges fitted with Rennline aluminum bezels. Additional instrumentation includes boost and air/fuel ratio gauges. 19,826 miles (title reads exempt).