Porsche 718 Cayman GT4 RS Adds $54K Manthey Racing Performance Kit

2024 porsche 718 cayman gt4 rs manthey racing
Porsche Adds Manthey Racing Kit to Cayman GT4 RSPorsche
  • Manthey Racing, Porsche’s official motorsports partner, has developed a performance kit for the 718 Cayman GT4 RS.

  • With a new rear wing, the Manthey-equipped Cayman produces 372 pounds of rear downforce at 124 mph.

  • The kit costs $53,946 and also brings a revised suspension and other performance goodies.

Porsche started offering performance kit from Manthey Racing to the United States for the first time with the latest 911 GT3, and during last year’s Lightning Lap competition, a Manthey-equipped GT3 lapped Virginia International Raceway 0.8 second quicker than a stock GT3. Now Porsche is expanding its Manthey offerings with a new kit for the 718 Cayman GT4 RS. We can’t wait to see how this new variant improves upon the GT4 RS’s 2:40.5 time at Lightning Lap.

2024 porsche 718 cayman gt4 rs manthey racing

Like with the 911 GT3, the focus is on aerodynamics and suspension. A larger, swan-neck rear wing sprouts from the engine cover and adds an extra adjustment position to give drivers another setup option. At around 124 mph and with the wing set to the track-focused “Performance” position, it produces 372 pounds of downforce, up from 196 in the standard GT4 RS. That’s so much downward pressure that Manthey had to add carbon-fiber reinforcements to the engine cover and increase the front spring rates by 20 percent to compensate.


Porsche and Manthey also worked together on a special coilover suspension that is dedicated to track driving. The spring struts can be set to four distinct positions, while the rebound and compression stages can be tweaked without tools. The special chassis setup is available on cars with or without the optional front axle lift system.

Other improvements to the GT4 RS include steel brake lines that Porsche says improve pedal feel and braking power delivery. The rear wheels also gain a set of aerodisc covers and owners can order tow loops for recovery during track driving. Manthey Racing does not touch the engine, which is perfectly fine by us given the naturally aspirated 4.0-liter flat-six’s 493-hp output.

2024 porsche 718 cayman gt4 rs manthey racing

Porsche says that a Cayman GT4 RS with the new Manthey kit recorded a lap time of 7:03:121 around the Nürburgring Nordschleife in 2023, a six-second improvement over the standard car. Porsche has owned a majority stake in the German racing team since 2013, but when the company became Porsche’s official motorsports partner in 2021, it led Manthey Racing to begin creating aftermarket add-ons that don’t void Porsche’s factory warranty.

The kit can be ordered through Porsche dealers starting this summer and goes for $53,946 before the cost of installation. Buyers can also pay an extra $5890 to add carbon fiber front fender louvers and a carbon fiber gurney flap on the rear ducktail spoiler, with the latter increasing rear downforce by a further four percent. The 718 Cayman GT4 RS starts at $163,650, so the kit will easily push the mid-engined Porsche over the $200K mark.

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