While the 993-generation of Porsche’s 911 was effectively the end of the road for Stuttgart’s beloved air-cooled powerplants, it also laid the foundation for an entire secondary industry devoted to building custom air-cooled Porsches.

Some of these firms have grown to become among the most popular shops in the world, with legions of adoring fans at car events and across social media alike.

It is Gunther Werks of Huntington Beach, California, however, that brings the 993 into the realm of truly extraordinary.

As described by Gunther Werks themselves, the company’s “Remastered” 911s are envisioned as the car Porsche would be building today—had the automaker not stopped building the 993 in 1998.

It all begins with an awe-inspiring amount of carbon fiber, which Gunther Werks has superbly woven into the chassis.

Numerous exterior body panels, along with many of the internals, have been swapped for the lightweight composite.

Underpinning this carbon fiber exoskeleton, Gunther Werks has...