The Porsche 911 GT3 has long been the go-to weapon for track-day regulars, but Manthey’s new performance kit for the 992.2 model turns the dial up even further. Developed over more than a year in close collaboration with Porsche’s R&D centre in Weissach, the kit pushes the GT3’s already formidable limits with deeper aero, chassis, and braking enhancements.

Manthey’s engineers have reworked almost every aerodynamic surface. The underbody becomes a single continuous aero element thanks to extended 1.5-metre turning vanes, a smoothed trunk-well cover to reduce turbulence, a more pronounced front lip, and revised diffuser fins. At the rear, a wider gooseneck wing with a gurney flap, enlarged endplates, and a reprofiled diffuser help plant the car at high speed. Optional carbon aero discs for the rear wheels cut drag and complete the purposeful look. The numbers say it all: up to 540 kg of downforce at 285 km/h in full track configuration.

The suspension sees a major overhaul, too. A newly developed four-way adjustable coilover kit increases mechanical grip while accommodating the higher downforce loads, with spring rates and damping calibrated for circuit use. Buyers can also opt for lightweight forged wheels that shed 6 kg of unsprung mass.

Braking performance has been sharpened with steel-braided lines as standard and optional motorsport-grade pads for PCCB-equipped cars. The result is a more consistent pedal feel and improved endurance over long sessions.

Behind the wheel of a 911 GT3 fitted with the Manthey Kit, DTM champion Ayhancan Güven lapped the Nordschleife in 6:52.981 minutes, which is 2.76 seconds quicker than the previous-generation GT3 running Manthey hardware, despite damp patches on the track.

The Manthey Kit goes on sale in March 2026, with pricing starting from €41,911 plus taxes and installation, and crucially, Porsche’s factory warranty remains fully intact.