SPEED diffuser suitable for Seat Leon Cupra 5F with TÜV parts certificate

„Our part has to work and have a technical advantage in addition to its appearance, otherwise we won’t build it.“ – Speed Engineering GmbH

All parts were not only developed but also manufactured in Germany and are therefore 100% Made in Germany!

For an assembly in our workshop, including TÜV approval, you can contact us or book directly here on this page. Please remember to write your chassis number in the comments field of your order so that we can issue and send the parts certificate for your vehicle.

Motorsport aerodynamics for your Seat Leon Cupra !

With our SPEED diffuser, you not only stand out from the crowd visually, but also transfer technology from professional racing to your car. The ratio between air resistance, which you want to keep as low as possible, and downforce, which you want, is maximized with this concept. The difference: this is not a component attached to the rear bumper. Most vehicles have a cavity in the rear area. This space leads to a turbulent flow situation. Our diffuser covers as much of this as possible and ensures that the air flow remains as laminar as possible. Made of aluminum, the diffuser is light and stable at the same time and remains affordable. The installation is well thought out: we use the original screw-on points as far as possible. This means that nothing needs to be cut on your vehicle! In rare cases, an additional hole is drilled. The connection is made via as many connection points as possible so that we have an even distribution of force over the entire diffuser board.

TÜV and registration We have spared no expense or effort and have had the diffuser inspected by experts: Your diffuser comes with a parts certificate and can therefore be registered without any problems!
The edge protection supplied must be fitted for approval.

Please note: Each of our diffusers was deliberately developed with base vehicles that already have a coilover suspension with a low setup. This ensures a ground clearance of 8 cm including mounted diffuser. However, we cannot reproduce every setup: If your vehicle has a different exhaust system or a modified rear bumper, you may have to adapt and modify your diffuser. In this case, the base vehicle had a Bull X exhaust system. The OEM exhaust system is not lower than the BullX

Included in delivery

• Speed diffuser base plate
• Various holders
• Fastening material
• Parts certificate
• Edge protection

This article is suitable for:

• Seat Leon Cupra 5f – Tested with the Bull X exhaust system. Small adjustments may be necessary for other exhaust systems.

A closer look https://www.youtube.com/watch?v=crDjEv1lkLg

The development https://www.youtube.com/watch?v=sF2JFPbKakI

The idea https://www.youtube.com/watch?v=YA7tRkGQoOQ&

We explicitly point out that none of our products offered for sale are original vehicle parts from the vehicle manufacturers BMW AG, M GmbH, MINI, VAG or other vehicle manufacturers. The naming of vehicle makes and models is only for the purpose of finding products and assigning them to the appropriate vehicle type.