Porsche 991 GT3 Cup carbon fiber rear diffuser with fins
The GT3 Cup rear diffuser from Albert Motorsport is a carbon fiber motorsport component for the Porsche 911 GT3 Cup (991.1 series). Designed for race car use, the diffuser kit includes an engine diffuser, four diffuser fins, and a stainless steel mounting kit. The design complements the rear underbody and enhances the aerodynamic performance of the race car.
Carbon rear diffuser for the Porsche 991 GT3 Cup
The Porsche 991 GT3 Cup rear diffuser is designed for motorsport-oriented use. A diffuser utilizes the airflow beneath the vehicle to influence aerodynamic downforce. This can improve the race car's grip, especially at higher speeds and in corners. The actual effect depends, among other things, on the vehicle configuration and the overall aerodynamic package.
The carbon fiber construction perfectly complements the Porsche 911 GT3 Cup's consistent lightweight and racing concept. Four diffuser fins complete the design and structure the airflow at the rear of the vehicle.
Scope of delivery of the GT3 Cup rear diffuser
The Albert Motorsport set includes the following components:
1 × Carbon fiber engine diffuser
4 × Diffuser fins
1 × Stainless steel holder set
Manufacturer: Albert Motorsport
Part number: AMS-Motor-Diff-Rear
Vehicle: Porsche 911 GT3 Cup, model series 991.1
Material: Carbon, with stainless steel mounting kit
Condition: New
Suitable motorsport parts for the Porsche 911
For the assembly or repair of your racing car, you will find further components in our Porsche 991.1 GT3 Cup Body category.
If you also require a transmission diffuser, please note that it is not included in the rear diffuser kit described here. Check the correct version based on your vehicle model and technical requirements.
Compatibility notes
Before ordering, please compare the model series, version, and existing mounting points of your Porsche 991 GT3 Cup. Albert Motorsport will be happy to assist you with any questions regarding the scope of delivery or installation.
Discover the carbon rear diffuser from Albert Motorsport for your Porsche 911 GT3 Cup motorsport project.



