MOSHAMMER CARRERA REAR DIFFUSER EVO FOR 991.2 PORSCHE 911 CARRERA S / 4S / GTS
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Moshammer Carrera Rear Diffuser Evo for 991.2 Porsche 911 Carrera S / 4S / GTS
Moshammer Carrera Rear Diffuser Evo borrows an idea from Porsche’s own GT cars and applies it where a 991.2 Carrera can use it. The vented diffuser frame carries mesh grills that let hot air out from around the exhaust, so cooling behaves closer to a GT model than to a standard Carrera, while the same structure does aerodynamic work as air leaves the underbody. Moshammer engineered it in Berlin to OEM+ tolerances, which is why the frame settles into the rear valance with nothing of the aftermarket about it. It comes unpainted with mounting material and a TUV parts certificate (§19.3). For owners of PSE-equipped Carrera S, 4S and GTS cars, it is the unusual upgrade that is as much thermal as it is visual.
Cooling and Venting
- Heat is the quiet enemy at the back of a 911, and this is where the Evo earns its name. The vented frame allows hot air to be drawn away from the exhaust area, optimizing cooling in the manner Porsche engineers into its GT models. That makes the part relevant to owners who drive hard as well as those who simply want the look.
Mesh Grill Frame
- The frame is supplied with its mesh grills, and they are the visual signature of the piece: a technical, layered lower rear rather than a single flat surface. Alongside the cooling benefit, the grills give the diffuser a depth that the standard 991.2 valance lacks entirely. The effect is closest in spirit to Porsche’s own motorsport-derived cars, without borrowing their theater.
Engineering and Fitment
- Moshammer develops each component for a specific rear valance, and the Moshammer Carrera Rear Diffuser Evo covers 991.2 Carrera S, 4S and GTS cars with the sport exhaust. The article is delivered unpainted with mounting material, and a TUV parts certificate (§19.3) is included. Production is to order in Berlin, in the small batches that let tolerances stay tight.
Features
- Aerodynamic profile working the air leaving the underbody
- Delivered unpainted
- Exhaust cooling optimized in the manner of the GT models
- Layered, technical rear appearance rather than a flat surface
- Made to order in Berlin in small batches
- Releases hot air from around the exhaust
- TUV parts certificate (§19.3) supplied
- Vented diffuser frame with mesh grills
What’s Included
- Mesh grill set for the diffuser frame (x1)
- Mounting material (x1)
- Vented rear diffuser frame, unpainted (x1)
Applications
- Porsche 911 Carrera S: 991.2 | 2017-2019
- Porsche 911 Carrera 4S: 991.2 | 2017-2019
- Porsche 911 Carrera GTS (PSE): 991.2 | 2017-2019
Notes
- Moshammer parts ship directly from Germany. Import taxes, duties, and tariffs may apply upon delivery and are the responsibility of the buyer. These fees are neither collected nor paid by Bulletproof Automotive.
- Moshammer products are not eligible for return
- Developed for 991.2 Carrera S, 4S and GTS models with the sport exhaust. Contact us if you are unsure whether your car carries PSE.
- Delivered unpainted. Have the frame finished before installation, with the mesh grills usually left black.
- Made to order in Berlin, so allow production time before dispatch
- Professional installation is recommended for a flush fit in the rear valance
Frequently Asked Questions
- What does the Moshammer Carrera Rear Diffuser Evo vented frame actually achieve? It lets hot air escape from around the exhaust, which optimizes exhaust system cooling in the same way Porsche approaches it on the GT models. It is a functional benefit on top of the aerodynamic and visual gains.
- Are the mesh grills included? Yes. The Moshammer Carrera Rear Diffuser Evo is supplied with its mesh grills, so nothing else needs sourcing before fitting.
- How does it differ from the standard Moshammer 991.2 diffuser? The Moshammer Carrera Rear Diffuser Evo adds the vented frame and mesh grills for cooling and a more technical appearance. The standard version is a continuous lower surface without venting.
- Does it require a sport exhaust? Yes. The Moshammer Carrera Rear Diffuser Evo is listed for 991.2 Carrera S, 4S and GTS cars with PSE, as the venting is designed around that exhaust arrangement.
- Is the Moshammer Carrera Rear Diffuser Evo certified? Yes, a TUV parts certificate (§19.3) is supplied with the diffuser.
- How does the Moshammer Carrera Rear Diffuser Evo mount? It fits to the original screw and click points in the rear valance, with the mounting material supplied. Professional installation is recommended for a flush fit.
About Moshammer
Moshammer Automotive is a Berlin-based manufacturer of OEM+ aerodynamic refinement for Porsche, with a smaller line for Mini, Audi, BMW, and Mercedes-Benz. The house style is restraint with intent: parts drawn to look as though the factory had gone one step further, developed against original mounting points, TUV-documented where German road use demands it, and produced in small batches rather than stocked in volume. Their catalog spans single accents such as vent grills and wing end blades through complete Downforce and Tradition RS aero programs, alongside a range of multipiece forged wheels made to order in any size, width, and finish.
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- Please review the product dimensions carefully to ensure the right fit for your space
- Color may vary slightly due to lighting and screen settings
- Materials and finishes are selected for both durability and visual appeal
- Some items may require simple assembly upon delivery
- Perfect for both everyday use and long-term comfort
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Product Size Guide
Please refer to the general size reference below to better understand how this product may fit into your space. Dimensions may vary slightly depending on the design and materials.
| Category | Small | Medium | Large |
|---|---|---|---|
| Decor & Accessories | Up to 10″ | 10″ – 20″ | 20″+ |
| Tables | Up to 30″ | 30″ – 60″ | 60″+ |
| Seating | 1 Seater | 2–3 Seater | 4+ Seater |
| Storage Units | Compact | Standard | Large Capacity |
| Lighting | Small Fixture | Standard Fixture | Large Fixture |
Note: For exact product dimensions, please refer to the specifications section above. This guide is intended as a general reference only.
MOSHAMMER CARRERA REAR DIFFUSER EVO FOR 991.2 PORSCHE 911 CARRERA S / 4S / GTS
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