Skip to main content






A three-part bumper attachment, massive wheel arch flares front and rear, side skirts in carbon look and a rear apron with two molded diffusers make the compact station wagon into a power athlete. The widebody kit is available in the style of the Cup Racer. JE DESIGN offers a rear diffuser that fits both the original exhaust and the JE DESIGN flap exhaust system. Sporty and ambitious drivers who want to hunt their Cupra ST down the race track grab the LED rain lights corresponding to the FIA regulations. This can be easily integrated into the rear diffuser.

Such a racy optic needs the right sound! The tuning specialists JE DESIGN know this. They offer a stainless steel flap exhaust system with EC approval for the Leon Cupra ST. This is controlled by the original driving profile selection made by Seat. The driving profiles Normal, Sport and Cupra can be selected. In the profiles Normal and Sport, the exhaust flap is closed and the exhaust sounds sporty but discreet. Cupra mode is different: With the flap open, the exhaust system reveals its full sound – music to the ears of Seat fans. There is a sound upgrade made of four striking tailpipes with a diameter of 80 millimeters each, or one tailpipe oval on each side in dimension 160 x 90 millimeters. The downpipe jointly developed by JE DESIGN and HJS for the flap exhaust system with 76 mm diameter is available. This accessory also has an EC approval.

JE DESIGN emphasizes the sporty appearance with a performance upgrade for the Cupra ST. An additional electronic box allows the power of 206 kW/280 hp to be increased to 258 kW/350 hp with a maximum torque of 440 Nm. It doesn't top off until a speed of 280. The performance enhancement includes a two-year warranty on engine, driveline and transmission (from the first registration).

The spring set , available for the original shock absorbers, provides 20 millimeters lowering. Alternatively, JE DESIGN offers the KW coilover suspension DDC Plug & Play. The application brings the fiery Spaniard as much as 45 millimeters closer to the tarmac.

Complete wheel sets with light alloy wheels from ATS or OZ up to a size of 10 x 19 inches and 265/30 R19 tires complete the offer.

Complete conversions are possible directly from JE DESIGN – acceptance by an official inspection organization included.

Any questions about our products?

Give us a call:

+49 (0)7131 / 20384-0

Or write an email to:

This email address is being protected from spambots. You need JavaScript enabled to view it.

Visit our Online-Shop


Benzstrasse 18-20
74211 Leingarten

  • +49 (0)7131 / 20384-0

  • +49 (0)7131 / 20384-20

  • This email address is being protected from spambots. You need JavaScript enabled to view it.

Office Hours

Monday - Thursday

08:00 - 12:00 and 13:30 - 17:00 h


08:00 - 12:00 h

© 2021 JE DESIGN GmbH  | Designed with ♥ by Papierflieger Media

Hi there!

This is a modal window which pops up with a slight delay (3,000 milliseconds = 3 seconds for this example) after the page is loaded and stores a cookie in the browser. Once the modal was closed it will not show again until a certain number of days has passed: 1 day in this example.

We use cookies

We use cookies on our website. Some of them are essential for the operation of the site, while others help us to improve this site and the user experience (tracking cookies). You can decide for yourself whether you want to allow cookies or not. Please note that if you reject them, you may not be able to use all the functionalities of the site.