MOSHAMMER
MOSHAMMER Porsche 991.1 Turbo S
The Downforce RS Aero-Kit and individual MOSHAMMER components
The MOSHAMMER 991 Downforce RS Aero-Kit reflects more than a decade of aerodynamic development, with design principles refined through motorsport experience and high-speed testing. Designed and engineered in Berlin, the kit gives the Porsche 911 991.1 Turbo S a more focused appearance inspired by GT-RS styling, while retaining the car's distinctive design character.
The coordinated components include a front spoiler, side skirts, rear spoiler extension, rear diffuser and ram air scoops. Together, they create a cohesive OEM+ styling package intended to complement the Turbo S's existing form and aerodynamic systems.
MOSHAMMER states that the aero-kit has TÜV approval and is supplied with a TÜV parts certificate under §19.3.
Premier Auto Design is a distributor of MOSHAMMER products; every component is designed and engineered by MOSHAMMER.
Complete Aero-Kit
MOSHAMMER 991.1 Turbo S Downforce RS Aero-Kit
Article references: P991.20.7000 / P991.20.7002
Vehicle compatibility: For Porsche 991.1 Turbo and Turbo S models. Not suitable for vehicles equipped with the original Sport Design Aero-kit.
Kit photographs
Fitted to the vehicle
The MOSHAMMER 991.1 Turbo S Downforce RS Aero-Kit is designed to enhance the appearance and aerodynamic presentation of the Porsche 991.1 Turbo and Turbo S. Inspired by GT-RS styling, it is intended for Turbo owners and enthusiasts seeking a more purposeful, motorsport-influenced look.
Kit Components
- Front spoiler — Evo I (P991.20.1020) or, as an option, Evo II (P991.20.1022)
- Two side skirts — P991.22.2020
- Rear spoiler extension — P991.20.3020
- Two ram air scoops — P991.20.2025
- Rear diffuser — P991.20.3040
The front spoiler is supplied in one configuration: Evo I as standard, or Evo II as an option. Only one front spoiler is included in each kit.
Finish and Information
- Delivered unpainted.
- Mounting material included.
- Supplied with a TÜV parts certificate (§19.3), as stated in the MOSHAMMER information.
Installation
Installation typically uses original screw points and, where required, special adhesive.
Individual MOSHAMMER Parts for the Porsche 991
Selected MOSHAMMER components can be explored individually. Each part has its own vehicle compatibility, so please check the details for every component.
Individual Component
MOSHAMMER 991 Front Bumper Air Vent Grill
Part number: P991.20.1010
Product photographs
The MOSHAMMER 991 Front Bumper Air Vent Grill is an OEM+ styling component developed to complement the design of the Porsche 991. Its vented design supports airflow management and provides a distinctive finishing detail to the front bumper.
Information
- Supplied unpainted.
- Mounting material included.
- Racing mesh / mesh grille is not included.
- TÜV parts certificate (§19.3), according to the supplied information.
Vehicle Compatibility
Listed for Porsche 991 models.
Installation
Typically uses original screw points and, where required, special adhesive.
Individual Component
MOSHAMMER 991 Turbo Front Spoiler Evo I
Part number: P991.20.1020
Product photographs
Fitted to the vehicle
The MOSHAMMER 991 Turbo Front Spoiler Evo I is designed to integrate with the factory front bumper, delivering a more purposeful OEM+ appearance. It is intended to enhance the front-end styling while retaining the functionality of the Porsche's active aerodynamic front spoiler.
Information
- Delivered unpainted.
- TÜV parts certificate (§19.3), according to the supplied information.
Vehicle Compatibility
Listed for Porsche 991.1 and 991.2 Turbo and Turbo S models, including vehicles with the Sport Design Aero-kit.
Installation
Typically uses original screw points and, where required, special adhesive.
Individual Component
MOSHAMMER 991 Turbo Front Spoiler Evo II
Part number: P991.20.1022
Product photographs
Fitted to the vehicle
The MOSHAMMER 991 Turbo Front Spoiler Evo II combines OEM+ styling with distinctive side wings for a sharper, more assertive front-end appearance. Designed to integrate with the factory front bumper, it aims to complement airflow management while retaining the functionality of the Porsche's active aerodynamic front spoiler.
Information
- Delivered unpainted.
- TÜV parts certificate (§19.3), according to the supplied information.
Vehicle Compatibility
Listed for Porsche 991 Turbo and Turbo S models, including 991.1 and 991.2, as stated in the supplied description.
Installation
Typically uses original screw points and, where required, special adhesive.
Individual Component
MOSHAMMER 991 RS Front Fender
Part number: P991.20.1080
Product photographs
Fitted to the vehicle
The MOSHAMMER 991 RS Front Fenders introduce integrated ventilation slots and an RS-inspired appearance to the Porsche 911. The supplied product information identifies their ventilation design as a feature intended to support brake cooling. Their original-width design is intended to retain the standard fender width rather than create a widebody conversion.
Information
- Supplied as a pair of two fenders.
- Delivered unpainted.
- Mounting materials included.
- TÜV parts certificate (§19.3), according to the supplied information.
Vehicle Compatibility
Listed for Porsche 991.1 and 991.2 Carrera, Carrera T, S, 4S, GTS, Turbo, Turbo S and GT3 models — Coupé, Cabriolet and Targa — subject to confirmation against MOSHAMMER's exact application list.
Installation
Uses original screw points.
Individual Component
MOSHAMMER 991 Turbo Ram Air Scoops
Part number: P991.20.2025
Product photographs
Fitted to the vehicle
The MOSHAMMER 991 Turbo Ram Air Scoops are designed to enhance the appearance of the side air intake area and support airflow to the intercoolers. Inspired by the airflow-management principles used in high-performance Porsche models, they provide a distinctive OEM+ detail for the Turbo range.
Information
- Delivered unpainted.
- Mounting material included.
- TÜV parts certificate (§19.3), according to the supplied information.
Vehicle Compatibility
Listed for Porsche 991 Turbo, Turbo S and GT3 RS models.
Installation
Typically uses original screw points and, where required, special adhesive.
Individual Component
MOSHAMMER 991 Turbo Side Skirts
Part number: P991.22.2020
Product photographs
Fitted to the vehicle
The MOSHAMMER 991 Turbo Side Skirts add a more pronounced, streamlined profile to the Porsche 911 Turbo. Their wider styling is designed to complement the car's lower bodywork and create a cohesive appearance with other MOSHAMMER aerodynamic components.
Information
- Delivered unpainted.
- Mounting material included.
- TÜV parts certificate (§19.3), according to the supplied information.
Vehicle Compatibility
Listed for Porsche 991 Turbo, Turbo S and GT3 RS models in the supplied product description.
Installation
Typically uses original screw points and, where required, special adhesive.
Individual Component
MOSHAMMER 991 Rear Bumper Air Vent Grill
Part number: P991.20.3010
Product photographs
Fitted to the vehicle
The MOSHAMMER 991 Rear Bumper Air Vent Grill is designed to complement the rear bumper with an OEM+ motorsport-inspired detail. Its vented design is intended to support the discharge of warm air from the engine bay and contribute to the visual character of the rear end.
Information
- Delivered unpainted.
- Mounting material included.
- Racing mesh / mesh grille is not included.
- TÜV parts certificate (§19.3), according to the supplied information.
Vehicle Compatibility
Listed for Porsche 991 models.
Installation
Typically uses original screw points and, where required, special adhesive.
Individual Component
MOSHAMMER 991 Turbo Ram Air Collector
Part number: P991.20.3050
Product photographs
Fitted to the vehicle
The MOSHAMMER 991 Turbo Ram Air Collector is designed to support the delivery of fresh air to the engine while adding a distinctive OEM+ styling detail. Its development draws inspiration from the airflow-management approach used on high-performance Porsche models, including the GT2 RS.
Information
- Delivered unpainted.
- Mounting material included.
- TÜV parts certificate (§19.3), according to the supplied information.
Vehicle Compatibility
Listed for Porsche 991 Turbo and Turbo S models.
Installation
Typically uses original screw points and, where required, special adhesive.
Individual Component
MOSHAMMER 991 Turbo Rear Wing Spoiler Extension
Part number: P991.20.3020
Not suitable for vehicles equipped with the original Aerokit, according to the supplied product information.
Product photographs
Fitted to the vehicle
The MOSHAMMER 991 Turbo Rear Wing Spoiler Extension is designed to enhance the rear profile of the Porsche 911 Turbo and Turbo S with a more motorsport-inspired appearance. According to the supplied product information, the original rear spoiler's height adjustment and active aerodynamic function remain unchanged.
Information
- Delivered unpainted.
- Mounting material included.
- TÜV parts certificate (§19.3), according to the supplied information.
Vehicle Compatibility
For Porsche 991 Turbo and Turbo S models.
Not suitable for vehicles equipped with the original Aerokit, according to the supplied product information.
Installation
Typically uses original screw points and, where required, special adhesive.
Individual Component
MOSHAMMER 991 Turbo Rear Diffuser
Part number: P991.20.3040
Product photographs
Fitted to the vehicle
The MOSHAMMER 991 Turbo Rear Diffuser adds a more purposeful rear-end appearance to the Porsche 991.1 Turbo and Turbo S. Its vented design and mesh grille arrangement are intended to complement airflow around the rear underbody and exhaust area, drawing on the styling of high-performance GT models.
Information
- Delivered unpainted.
- Mounting material included.
- TÜV parts certificate (§19.3), according to the supplied information.
Vehicle Compatibility
Listed for Porsche 991.1 Turbo and Turbo S models.
Installation
Typically uses original screw points and, where required, special adhesive.
Individual Component
MOSHAMMER 991 Turbo X-Pipe Race Exhaust
Part number: P991.20.4080
Product photographs
The MOSHAMMER 991 Turbo X-Pipe Race Exhaust is a cat-back exhaust system listed for Porsche 991.1 Turbo and 991.2 Turbo and Turbo S models. The supplied product description highlights its motorsport-inspired exhaust note, potential weight savings compared with the original system and reduced exhaust backpressure.
MOSHAMMER describes the system as a direct bolt-on replacement compatible with the original muffler sets, and states that it does not trigger a check-engine light. These are supplier statements rather than independently verified guarantees.
Information
- Mounting material included.
Vehicle Compatibility
Listed for Porsche 991.1 Turbo and 991.2 Turbo and Turbo S models.
Installation
Follow the manufacturer's instructions and confirm vehicle-specific exhaust compatibility before ordering or fitting.
Enquire About MOSHAMMER for the Porsche 991.1 Turbo S
Contact Premier Auto Design for further information on the Downforce RS Aero-Kit, individual components, vehicle compatibility and installation requirements.