New Manthey kit sharpens Porsche 911 GT3 track focus

Porsche is offering a new Manthey Kit for the current 911 GT3 (992.2), aimed squarely at customers who regularly run track days. Developed with Manthey in Meuspath and Porsche’s Weissach development center, the package focuses on significantly higher downforce, modified suspension and brake components, and preserves the factory warranty when installed by Manthey certified U.S. Porsche Centers. In this configuration, the 911 GT3 lapped the Nürburgring Nordschleife in 6:52.981 minutes, 2.756 seconds quicker than its predecessor with the Manthey Kit.

Aerodynamic work is extensive. The underbody is turned into a continuous aero surface using larger turning vanes, a smoothed luggage compartment floor, a redesigned and extended front lip, special diffuser fins, and side flaps to increase front axle downforce. At the rear, a wider swan neck wing with Gurney flap, larger inward curved end plates, and a diffuser with longer fins add stability without increasing drag. Carbon fiber aerodiscs on the rear wheels complete the package. Depending on the setting, the car generates from 782 lbs. of downforce up to 1,190 lbs. in the most aggressive, track only configuration.

Chassis and braking hardware are tailored for circuit use. A four way adjustable coilover suspension allows tool free tuning of rebound and compression, with front spring rates increased by 10 percent over the previous Manthey kit. Optional lightweight 20 and 21 inch forged wheels cut unsprung mass by 13.2 lbs. compared to standard wheels and are offered in Brilliant Silver, Neodyme, and Black (silk gloss). Braided steel brake lines are standard in the kit to improve pressure precision and brake control.

Owners can further individualize their cars with Manthey branded and carbon fiber accessories, including illuminated door sill trims, LED door projectors, colored decals for the aerodiscs, tow straps in multiple colors for track use, and additional carbon fiber air outlets and intakes. On the Nordschleife, reigning DTM champion Ayhancan Güven used the new kit to record a 6:52.981 lap in less than ideal conditions, 2.76 seconds faster than the previous generation 911 GT3 with Manthey Kit, both on optional Michelin Pilot Sport Cup 2 R tires. The new Manthey Kit for the 911 GT3 is expected to reach the U.S. in spring 2026, with market specific pricing to be announced closer to launch.