Porsche 911 GT3 Manthey Performance Kit Levels Up an Already Great Thing

Porsche is finally making the Porsche 911 GT3 Manthey Performance kit available locally. After having been available in Europe for almost a year, US-based owners of the 992-generation 911 GT3 can now purchase the kit.

The Manthey Performance Kit comes with a new fully adjustable coil-over suspension system, underbody aerodynamic adjustments, a larger splitter, dive planes, an extended carbon-fiber-reinforced plastic rear diffuser, a larger swan-neck rear wing comes with a Gurney flap, braided stainless-steel brake lines with optional racing brake pedals. The new kit increases spring rates by 10% in the front and 7% in the rear. The kit also allows owners to retain the car’s factory warranty and full road legality.

The changes are evident in the Nürburgring Nordschleife lap times. A Manthey Performance Kit GT3 went around the track with a lap time of 6:55.737, 4.19 seconds faster than a stock GT3.

Starting June 2023, interested parties can check out the difference between the standard GT3 and the Manthey-equipped car. For $1,675, drivers can take advantage of a 90-minute session, that includes seat time, to compare the two versions at the Porsche Experience Centers in Atlanta or Los Angeles, which also offer a four-hour session.

The Manthey Performance Kit is available at and must be installed by a Manthey-certified Porsche dealership, with a price tag starting at $57,300. Optional lightweight forged wheels with aero covers add another $15,500.


Por Homme is a contemporary lifestyle magazine dedicated to providing readers with the latest news around automotive, fashion, travel, tech and more.