Modified 1976 Porsche 911S Slant Nose Turbo on BaT

A modified 1976 Porsche 911S with slant nose body, turbo 3.3L engine, and modern EFI reaches $125K on Bring a Trailer. Explore specs and build details.

A $125,000 bid with hours remaining signals that this is not just another classic Porsche, but a heavily reworked 1976 911S transformed into a modern turbocharged build with distinctive styling and upgraded engineering.

The car started as a mid-year 911S, originally equipped with a 2.7-liter flat-six producing around 175 horsepower. In this case, that baseline has been replaced by a twin-plug, turbocharged 3.3-liter engine paired with Turbokraft electronic fuel injection, a MoTeC M130 ECU, and coil-on-plug ignition. Dyno results from a Mustang Dynamometer show 352 horsepower and 435 lb-ft of torque at the wheels, figures that move far beyond the capabilities of the original model.

Visually, the build centers on the slant-nose theme, historically linked to the Porsche 935 race car and later factory 930 Turbo Flachbau models. Here, that concept is applied through steel slant-nose bodywork, widened fenders, a tea-tray rear spoiler, and a Pangea Green finish. This styling is typically associated with 930 Turbo variants, making its use on a 1976 911S particularly unconventional.

The mechanical package reflects a cohesive approach rather than isolated upgrades. Alongside the engine, the car features a rebuilt four-speed manual transaxle from a Porsche 930, completed in 2025 and fitted with a Wavetrac limited-slip differential. Suspension components include Koni shocks and an Eibach rear sway bar, while braking is handled by a Brembo Gran Turismo system. Additional upgrades include an external oil cooler, a revised fuel system, and a Fabspeed 930 Maxflo exhaust.

Inside, the cabin has been retrimmed with Porsche Nappa Cream leather and gray Alcantara. It includes a MOMO steering wheel, an adjustable Rennshift mechanism, and a Pioneer Bluetooth audio system. The odometer shows roughly 100 miles since the completion of the build, and documentation of the work is included.

This combination reshapes the identity of the car. Rather than a standard mid-1970s 911S, it blends elements of the G-series platform, the turbocharged 930 lineage, and the visual language of Flachbau models. The integration of EFI, modern engine management, and reinforced drivetrain components suggests an effort to align the classic chassis with later performance expectations.

As a result, the car occupies a distinct position. It is neither a factory-original collector example nor a period-correct Flachbau, but a completed custom project that merges historical design with contemporary engineering solutions, ready for immediate use rather than long-term development.