Designed for those who wish to extract every ounce of track capability, here’s how Manthey Racing sharpens the already formidable RS into a Nürburgring-dominating machine.
The 992.2 update for the Porsche 911 has been an interesting case. Earlier this year, we saw the first-ever production hybrid 911 with the GTS. Then came the 992.2 GT3, which strangely enough did not receive a power bump, marking a first for Porsche. As the 992.2 lineup continues to evolve, the next-gen GT3 RS is expected to feature slightly more power from its signature 4.0-liter flat-six. But for those who don’t want to wait, Manthey Racing, the Nürburgring-based Porsche Super Cup veteran, offers a comprehensive kit to upgrade the 992.1 GT3 RS, NOW. This package delivers much-needed aerodynamic and chassis enhancements that might make the upcoming 992.2 GT3 RS seem like an unnecessary upgrade. I recently got to take a close look at the Manthey kit in person, at the Icons Of Porsche event in Dubai, and here’s how it compares to the standard GT3 RS.
2025 Porsche 911 GT3 RS Manthey Racing Kit
The package comes with 17 key upgrades
Porsche’s GT3 RS lineup has always emphasized lightweight engineering, but the Manthey Racing version sheds even more pounds with extensive use of carbon fiber and other lightweight materials. The 911 GT3 RS has always been the winged track weapon in the 911 lineup, and the 992 is no exception.
Manthey’s kit for the 992.1 GT3 RS took two years to develop. While it doesn’t include powertrain enhancements, it focuses purely on aerodynamic and handling upgrades. The kit consists of 17 elements that improve the GT3 RS’s handling, high-speed stability, downforce, and stopping power, all while shedding weight and adding visual flair. Here’s what the Manthey kit includes:
Semi-active coil-over suspension with aluminum body and adaptable valve control for adjustable rebound and compression
High-performance brake pads, suitable for road and track use
Brake lines with stainless-steel woven braid for superior brake response
Carbon-fiber front splitter add-on and wheel-arch air guide
Carbon-fiber front-bumper canards/air flaps
Revised carbon-fiber front apron
Underbody cover/flat bottom (front section)
Carbon-fiber rear diffuser
Two-piece, carbon-fiber DRS wing blade
Carbon-fiber rear-wing end plates with Manthey logo
Carbon-fiber shark fin with window insert
Carbon-fiber roof fins
Carbon-fiber aero discs for the rear wheels for improved rear-end downforce
Titanium-steel front and rear tow loop (available in black, yellow, and red)
Carbon-fiber door sill trim with Manthey logos
LED Manthey door projectors
Manthey decal set (available in black, gold, and red finishes)
2025 Porsche 911 GT3 RS VS. 2025 Porsche 911 GT3 RS Manthey Racing: Features
Manthey also dials up the visual drama with carbon-fiber additions like a shark fin, roof fins, aero discs, and canards
The 911 GT3 RS and its Manthey Racing counterpart, while built upon the same platform, offer distinctly different driving experiences. The standard RS is already renowned for its razor-sharp handling, naturally aspirated powerplant, and lightweight construction. The Manthey package amplifies these traits, adding bespoke upgrades like a race-tuned suspension and enhanced braking systems for even greater confidence on the track.
With these aerodynamic upgrades,downforce increases by approximately 20%, achieving 2,204 pounds compared to 1,895 pounds at 177 mph. Combined with increased spring rates (30% at the front axle and 15% at the rear), these enhancements reduce dive, pitch, and roll during cornering, providing a more stable platform at high speeds.
Aerodynamic improvements are extreme: the Manthey GT3 RS generates 2,204 pounds of downforce at 177 mph, a 20% increase over the stock model
The choice is clear: the standard GT3 RS offers raw, balanced performance, while the Manthey version is built for uncompromising lap times
Under the hood, both versions of the GT3 RS are powered by the same 4.0-liter naturally aspirated flat-six engine. Delivering 518 horsepower and a redline at 9,000 RPM, the engine is a masterpiece of engineering. However, where the Manthey Racing edition truly shines is in its handling dynamics and aerodynamics, fine-tuned for ultimate lap times. The standard GT3 RS produces up to 1,895 pounds of downforce at 177 mph, while the Manthey version surpasses this with even greater aerodynamic efficiency and balance.
They include things like semi-active suspension system, high-performance brake pads, and a two-piece carbon-fiber rear wing
Manthey’s comprehensive kit for the Porsche 992.1 GT3 RS comes at a price. In Europe, it costs €78,000, which translates to just over $82,000. Adding this to the base price of the 911 GT3 RS ($241k), you’re looking at a car costing just over $320,000, not including dealer markups. Manthey also offers kits for the standard 992 GT3 and GT3 Touring models, but these are less aggressive compared to the track-optimized 992.1 GT3 RS kit.
Manthey’s goal for the 992.1 GT3 RS is to maximize performance while improving vehicle control at the limit. Drawing on decades of Porsche racing experience, Manthey has fine-tuned each component for ultimate track capability. I caught up with Micheal Grassl Sales director for Manthey Racing, at Icons Of Porsche, Dubai, and he informed me that a Nürburgring time hasn’t been attempted yet, but with the upgrades, expect a time in the 6:30s… For context, the 991.1 GT2 RS MR is currently the quickest production Porsche at the ‘Ring with a time of 6:43.30 minutes and the quickest overall production car remains the Mercedes AMG One with a time of 6:29.09 minutes.
The choice between the 911 GT3 RS and its Manthey Racing iteration boils down to your priorities. The standard GT3 RS provides a raw, track-ready experience with incredible balance and usability. The Manthey Racing version, however, is for those seeking the absolute fastest lap times and cutting-edge performance. If ultimate track dominance is your goal, the Manthey kit is worth the investment.