Porsche Manthey Racing: The Nürburgring-Born Specialists Behind Porsche’s Sharpest GT Weapons

What Manthey Racing is today

Manthey is a Porsche specialist with multiple business divisions—racing, performance, engineering, services, and experiences—built around deep expertise with Porsche GT models. (manthey-racing.com) Porsche AG is also deeply invested, holding 51% of Manthey Racing GmbH. (manthey-racing.com)

That ownership isn’t a vanity stake. Porsche’s own history content notes that since Porsche’s majority investment, the manufacturer has run key endurance operations through Manthey—especially in the FIA WEC GT categories. (Porsche Newsroom)

The Manthey-modified Porsche: What “Manthey” means in hardware

When people say “Manthey-modified Porsche,” they might mean two related things:

1) The race program: 911 GT3 R prepared and operated at the sharp end

Manthey fields and develops Porsche 911 GT3 R race cars at the highest GT3 level—most notably in FIA WEC LMGT3 and in sprint racing such as DTM. (manthey-racing.com)

2) The performance products: Manthey kits and components for track-focused road cars

Manthey’s kit philosophy is consistent across models: aero + chassis + braking improvements, tuned as a system and validated by heavy track mileage. Manthey describes development as involving “countless kilometres” of test and track driving, with components engineered to push performance and control at the limit. (manthey-racing.com)

These kits are also not “random aftermarket parts.” Manthey emphasizes that certain kits are developed in close collaboration with Porsche’s Weissach development center, and distributed via Porsche Centers—an unusually official pipeline in the performance world. (manthey-racing.com)

Current race teams using Manthey-prepared Porsches and Manthey operations

FIA World Endurance Championship: Manthey’s two-car Porsche LMGT3 effort

For 2025, Manthey confirmed it would field two Porsche 911 GT3 R entries in the FIA WEC:

• Manthey / Iron Dames (car #85)
• Manthey 1st Phorm (car #92) (manthey-racing.com)

Manthey’s WEC presence isn’t “participation.” Porsche’s race reporting and Manthey’s own updates emphasize that this program is consistently fighting for wins and titles. For example, Porsche’s newsroom reported Manthey 1st Phorm clinched the FIA Endurance Trophy in LMGT3 in 2025. (Porsche Newsroom) Manthey also highlights major results in-season—wins and podiums—such as an LMGT3 win in Qatar’s season opener in the LMGT3 era and a podium at Imola. (manthey-racing.com)

Why this matters: WEC is where Manthey’s “product mastery” is most visible—multi-stint tire behavior, pit execution, setup across wildly different circuits, and reliability over 6–24 hours.

DTM: Manthey EMA and the Porsche 911 GT3 R sprint program

Manthey also operates at a sprint-racing level with Team Manthey EMA, campaigning the Porsche 911 GT3 R in DTM. In 2025 Manthey expanded to three entries, reinforcing the team’s depth and Porsche’s confidence in their execution. (manthey-racing.com)

Nürburgring 24 Hours: “Grello” and the home-circuit proving ground

Manthey’s most mythic arena is still the Nürburgring. For the 24 Hours of Nürburgring, Manthey EMA again entered a Porsche 911 GT3 R—explicitly targeting another overall win at the endurance classic in the Eifel. (manthey-racing.com)

This is the Manthey identity in one sentence: build the thing at the Nürburgring, prove it at the Nürburgring.

The circuits that matter most to Manthey’s craft

Manthey’s “mastery” is circuit-shaped. Not all tracks stress a GT3 car the same way, and Manthey’s core competencies map cleanly onto the venues that punish weaknesses.

Nürburgring Nordschleife + Nürburgring 24h

Manthey repeatedly frames the Nürburgring as the foundation of their expertise—where aero stability, suspension compliance, and brake consistency get exposed like nowhere else. (manthey-racing.com)

Le Mans (24 Hours)

Manthey’s WEC track record includes major Le Mans class wins in LMGT3, and Porsche’s reporting specifically underscores Manthey’s strength there. (Porsche Motorsport Hub) Le Mans is where efficiency, top-speed stability, and night-time consistency separate “fast” from “championship-grade.”

WEC’s modern technical mix: Qatar (Lusail) and Imola as examples

Manthey’s own race reports highlight performance at Lusail (Qatar) and Imola, circuits that demand very different compromises—high-speed stability and tire management versus traction, curbs, and controlled aggression. (manthey-racing.com)

DTM sprint venues

DTM asks a different question: can you deliver speed with minimal margin for error, quick setup adaptation, and sharp operational calls? Manthey’s 3-car 2025 program suggests they can scale that process. (manthey-racing.com)

How Manthey “mastered” the product

Manthey’s advantage isn’t one magic part. It’s a repeatable method:

1) A systems approach: aero + chassis + brakes, tuned together

Manthey kits are built around the idea that a track car is a system: aerodynamic balance affects tire loads; tire loads dictate damping and spring choices; braking stability changes how deep you can carry speed. Manthey describes its kits as precisely tuned combinations of aerodynamic, suspension, and brake components aimed at better control at the limit. (manthey-racing.com)

2) Nürburgring-led validation and obsessive iteration

Their public messaging keeps returning to extensive testing miles and the Nürburgring’s influence. That matters because “works on one perfect lap” isn’t the same thing as “works for 6 hours in traffic.” Manthey’s endurance racing base forces durability and consistency into the hardware. (manthey-racing.com)

3) Close integration with Porsche

Manthey’s kits and developments are described as being created in close collaboration with Porsche’s Weissach engineers and distributed through Porsche channels—an indicator that the parts aren’t just fast, they meet Porsche-level validation and support expectations. (manthey-racing.com)

4) Proven performance in the hardest categories

Manthey’s ongoing success in WEC’s GT categories and its Nürburgring credibility are reputational compounding: top-level series don’t forgive weak processes. Porsche’s own communications repeatedly place Manthey at the center of GT success in WEC-era operations. (Porsche Newsroom)

Why Manthey’s role matters to “Porsche racing” globally

Porsche has always been a brand where customer racing matters. Manthey strengthens that ecosystem by acting as both a top-tier operator and a development multiplier—turning racing experience into repeatable solutions and preparation standards.

In plain terms:

• On Sunday, Manthey wins or fights for wins with the 911 GT3 R. (Porsche Motorsport Hub)
• On Monday, those lessons show up as refined setup philosophy, more durable components, better aero balance—and, in some cases, Porsche-approved track hardware made available beyond the factory race shop. (manthey-racing.com)

That’s how Manthey has mastered the Manthey-modified Porsche: not by chasing hype, but by building a feedback loop where the world’s toughest circuits keep signing off on the work.

If you want, I can add a short “who’s who” sidebar that breaks down the current Manthey WEC identities (Iron Dames partnership, Manthey 1st Phorm banner, etc.) and what role each plays in Porsche’s broader GT strategy.