- Manthey’s newest kit for the Porsche 911 GT3 RS swaps out the rear window for a massive spoiler mount
- In concert with a bunch of other aero improvements, the giant wing makes a literal tonne of down-force
- The kit, sans Porsche 911, costs CDN$177,000 and doesn’t void your factory warranty
Recommended Videos
Porsche’s motorsport partner Manthey Racing unveiled a new kit for the 992-gen Porsche 911 GT3 RS at the Icons of Porsche festival in Dubai late November. The aggressive package is designed to amplify the capabilities of arguably one of the greatest performance cars on the market today.
In stock form, the latest iteration of the GT3 RS is already one of the most capable Porsche production models around any circuit. In 2022, the Porsche 911 GT3 RS completed a 20.8-kilometre tour of the Nürburgring in 6:49.328 minutes. At the time, it was the fastest naturally aspirated production car to lap the infamous Green Hell track layout.
The Manthey Racing kit extracts even more performance by focusing on three main areas: aerodynamics, braking, and suspension setup. One of the most prominent features of the kit is the rear-window-mounted carbon-fibre fin. It is inspired by a similar appendage on the Porsche 963 endurance racing hypercar, and helps increase cornering stability.
Forget about rearward visibility with the Manthey Racing kit. Who cares about what’s behind when you’re busy slicing through corners, seeking the perfect racing line? Like with the Polestar 4 EV, the entirety of the glass back window is gone, and in its place is a 25% lighter carbon-fibre panel that serves as a base for the shark-fin spoiler.
In addition to the shark fin, other aerodynamic elements on the Manthey Racing kit include roof fins; dive planes ahead of the front wheels; a new front spoiler lip; wider rear diffusers; aerodisc wheel covers; and larger, redesigned end plates on the rear spoiler. The result is a track monster that generates over 2,205 lbs (1,000 kg) of down-force at 177 mph (285 km/h). For context, the stock 911 GT3 RS generates 1,896 lbs (860 kg) of down-force at the same speed.
At the same time, the semi-active coilover suspension has been fine-tuned, providing greater precision and maximizing racetrack stability. The braking system has also been improved, with steel-sheathed brake lines that Manthey Racing says provide a more direct pedal feel and better response time.
“Over a period of two years, we worked together with Porsche engineers on the new Manthey Kit for the 911 GT3 RS and tested it over several thousand kilometres on European racetracks and on the Nürburgring Nordschleife,” said Nicolas Raeder, Managing Director of Manthey Racing GmbH.
Poor weather conditions have unfortunately hampered the setting of a lap time at the Nurburgring. However, once an official run happens, Manthey Racing is confident the collected data so far will translate to significantly improved lap times over the standard GT3 RS.
The Manthey Racing kit is ready to order at an eye-watering CDN$177,500 (£100,000) not including the Porsche 911 GT3 you’re sticking it on,and will be available outside Europe from March 2025. Interested clients will be delighted to note the kit will in no way affect the standard manufacturer’s warranty on the 911 GT3 RS.
Sign up for our newsletter Blind-Spot Monitor and follow our social channels on Instagram ,Facebook and X to stay up to date on the latest automotive news, reviews, car culture, and vehicle shopping advice.