If you love fast, modified Porsches then the 993 400R by south Californian company, Gunther Werks, will tick all the boxes. After almost a year of development the company has started taking orders for their bespoke 400R, which will be limited to a run of just 25 examples.

The base for a Gunther Werks 400R begins with a 993 Porsche 911 Carrera, which has to be supplied by the customer – if they can’t find one, Gunther Werks will happily help. Everything from the drivetrain to body panels is replaced. The company states on their website that “many Porsche enthusiasts see the 993 as the last real Porsche”.

The 4.0-litre naturally-aspirated flat-six engine in the 400R is sourced from Rothsport, which is based in Oregon, and punches out what Gunther Werks says is “400hp plus” (more than 298kW). Each engine is blueprinted and balanced, and features gear such as Mahle pistons, Motec engine management, individual throttle bodies, and a billet crankshaft.

Making sure the 400R sounds the part is a set of stainless steel headers that are said to offer “both a broad torque spread and top-end power”, while a 997 GT3 stainless steel rear silencer and custom Gunther Werks exhaust tips finish off the system.

The gearbox used is a 993 Getrag G50 item, but is fully rebuilt with custom ratios. The shift linkage is also upgraded, and a single-mass mid-weight flywheel with a single-plate clutch are installed.

Visually is where the 400R really grabs your attention, which is thanks to a custom widebody kit that is made up of carbon fibre bumpers, roof, and front and rear guards. The 400R sits on a set of KW Clubsport coilovers, allowing the limited-run Porsche to sit just right.

The widebody kit certainly wouldn’t look the same without the 315-section rear tyres, LED lights, and that huge adjustable rear wing. We’re not sure if you can have the 400R in various colours, but the red hue of this example definitely helps the 400R to stand out.

Move to the cockpit and Gunther Werks has introduced a combination of spartan, Alcantara, carbon fibre, and billet aluminium trim, all what they say is to embrace the “DNA of the original design while respectfully remastering it”. Peter Nam, founder of Gunther Werks, said:

“We’ve completed final testing and are extremely excited to deliver our clients their 400R conversions. Like a handmade suit, each vehicle is tailored to its owner. From the interior and exterior combinations, to the suspension dampening, these vehicles are built to match each customer’s wants and needs.”

If you’re keen to get your hands on a 400R, the conversion will set you back US$525,000, plus a 993 Porsche 911 Carrera. Head over to Gunther Werks if you’d like a more in-depth look.

Huge fan of long road trips. Love the cackle of a bent-eight first thing in the morning. And love a good flat white and eggs bene’ at my local café. Swing more towards European and Australian muscle more than American or Japanese, but I’m always willing to applaud anything that’s built with the driver in mind.