The Porsche 911 GT3 RS is already an extreme machine, but specialist tuning firm Manthey has pushed the boundaries even further with its latest iteration. This collaboration marks a shift in Porsche’s approach to high-performance development, where even the factory’s most aggressive engineering isn’t deemed enough.
The Rivalry That Drives Innovation
For years, Manthey Racing, a small but influential tuning house, has been quietly outperforming Porsche’s own racing division. Their success stemmed from an ability to apply real-world motorsport tricks to road-legal cars – modifications Porsche itself couldn’t legally implement due to homologation restrictions. This included bolder aerodynamic elements, lowered ride heights, and aggressive tuning that elevated the GT3’s performance beyond factory limits.
Porsche responded by developing the current 992-generation GT3 RS with radical features like a central radiator (sacrificing front storage space) and sculpted suspension components designed to generate downforce. The move appeared to eliminate Manthey’s advantage, but the tuner has found a way to one-up even these extreme measures.
Beyond Factory Extremes: The Manthey Enhancement
Manthey’s latest GT3 RS is a visceral exercise in aerodynamic excess. The car sits lower, with a massive rear wing featuring endplates large enough to dominate the skyline. Roof vanes divert hot air from the central radiator, preventing turbulence over the DRS-equipped rear wing. The front splitter is so extended that it requires additional supports, and aggressive canards, rear wheel aero discs, and a colossal carbon-fiber diffuser complete the visual assault.
The result? Downforce increases from 860kg at 175mph in the standard GT3 RS to over one metric tonne in the Manthey version, with no added drag. This is not merely cosmetic; it fundamentally alters the car’s handling and stability.
Suspension, Brakes, and Tires: The Final Touches
Under the skin, Manthey replaced the standard Bilstein dampers with custom-tuned KW units, plumbed into Porsche’s PASM system for on-the-fly adjustment via the steering wheel. The tuner also upgraded the brake lines to braided steel and fitted sticky Michelin Pilot Cup 2 R tires capable of shaving 10 seconds off a lap at the Nürburgring.
This isn’t just about more power or less weight; it’s about extracting every last drop of performance from the chassis, pushing the GT3 RS into territory where the line between street car and race machine blurs.
The Manthey-tuned GT3 RS represents a new level of automotive obsession, where even the most extreme factory specifications aren’t enough for those seeking ultimate track performance.
