The Mid-Engine Manthey Monster Is Here.

+176 lbs Downforce at 124 mph.

And It Looks This Good.

When you search for a Manthey kit for sale, you want numbers that matter. At 124 mph, this aerodynamics package increases overall downforce from 196 lbs to 372 lbs—a 176 lb improvement that transforms cornering capability.

Flaps and new air curtains with wheel housing curtains improve front ventilation. A completely new carbon front diffuser ensures ideal underbody flow, sharpening turn-in behavior and grip. The fixed carbon rear wing with integrated Gurney flap dominates the rear—widened 3.3 inches, four-stage adjustable, geometrically adapted to the roof contour with pronounced cranking for optimal airflow harmony.

Redesigned wing end plates carry the Manthey logo. Exposed carbon body reinforcements handle the loads. Aerodiscs on the rear wheels reduce turbulence and can be personalized with decorative film.

Wind tunnel proven at Weissach. Track proven at the 'Ring. Ready for your next session.

The Front Axle Grip You Feel in Every Turn-In

The Porsche Manthey 718 GT4 kit doesn't just add rear downforce and hope for the best. The carbon front diffuser works with flaps and air curtains to manage airflow through the wheel housings, creating higher front axle downforce that balances the massive rear wing.

The result is neutral handling at the limit. Predictable rotation. The confidence to trail-brake deeper because the front end stays planted. Turn-in behavior becomes telepathic—think the line, and the car finds it.

This is what happens when aerodynamics are developed as a system, not a shopping list of parts.

Pedal Feedback That Makes You Faster—Proven on the Nordschleife

The Porsche Manthey kit includes a brake line set with steel sleeve for immediate pedal feedback and faster response—co-developed and tested by Manthey on the 12.9-mile Nürburgring Nordschleife.

Optional racing brake pads sharpen the package further. Developed specifically for track use, they improve fade resistance, response, and control. Constant friction across temperature ranges. Excellent wear with low rotor wear.

On a track like the 'Ring, braking confidence separates the quick from the terrified. Manthey gives you the tools to be both quick and composed.

Less Time Cleaning. More Time Driving.

Track days generate debris. The Porsche Manthey kit includes specific grille inserts for the side air intakes above the skirts—stopping coarse dirt like tire rubber abrasion at the easy-to-reach inlet.

Cleaning the ducts becomes simpler. Maintenance time drops. And you spend more of your weekend where you want to be: on track, not in the pits with a brush.

It's a small detail. But it's the kind of detail that separates thoughtful engineering from aftermarket guesswork.

Details That Signal This Cayman Plays in a Different League

The Manthey kit for sale transforms presence. Illuminated carbon door entry guards glow with red and white Manthey logos. Optional door graphics in white or black. Optional towing loops in red, black, or yellow for track use—front and rear, removable for the street.

Want more? A carbon rear spoiler attachment adds 4% more rear downforce in high-downforce wing position. Optional viewing carbon louvres for wheel housing ventilation, visually coordinated with the Weissach package carbon hood—or striking against painted surfaces.

Note: Components are precisely matched and must be installed together. Individual packages available separately.

The Wheel Upgrade

16.1 lbs Lighter. Noticeably Quicker. Your Choice of Finish.

Rotating mass is the enemy of response. The optional Manthey kit for sale lightweight wheel set technologically optimizes the standard design, cutting 7.3 kg of springless and rotating mass per vehicle set.

The benefit? Sharper spring/damper response. Improved vehicle controllability. And the knowledge that you've removed weight where it matters most.

Available in Brilliant Silver, Satin-Gloss Black, Dark Silver, or Neodymium. Compatible with standard 20/21-inch GT3 wheel sets. Recommended tire: Michelin Sport Cup 2 R for maximum grip.

The 718 Cayman GT4 RS Manthey Kit: Mid-Engine Precision, Manthey Perfection.

You searched for a Porsche Manthey kit for sale because you refuse to accept "good enough." Champion Porsche is your Manthey-Certified installation center—factory-trained technicians, genuine components, warranty protection intact.

The 7:03.121 lap time is proven. The engineering is complete. The only variable left is you.

Limited kits available. Installation slots filling. Track season approaching.