This EGO-X exhaust system for the Cupra Leon KL Sportstourer 300 PS is hand-built using TIG welding and consists of absorption silencers. The pipe diameter is 3.5″ (89 mm). Its straight-through design delivers maximum sound when the valve is open, while the system is extremely quiet with the valve closed – during relaxed motorway driving it is even quieter inside the cabin than the standard system.
Technical details
- Pipe diameter: 3.5″ (89 mm); the main pipe branches to 1 × 76 mm / 3″ on the valve side and 1 × 63 mm / 2.5″ on the silencer side
- Pipe material: stainless steel
- Absorption silencers: hand-built
- Cat-back
- TIG welded
- With electric exhaust valve
- Weight saving: 5 kg – standard system: 24.5 kg, EGO-X: 19.5 kg
Package contents
- Exhaust system from the catalytic converter onwards
- Fitting instructions
- Fitting hardware
- Electric exhaust valve
- SBS motor
- Bull-X Tronic control unit when the ECE configuration is selected
Road use: ECE approval applies only to the configuration with the Bull-X Tronic control unit and EG catalytic converter. All other valve-control and catalytic-converter options are intended solely for track use.
With the ECE configuration, the Bull-X Tronic control unit provides Comfort and Sport or Dynamic/Race modes. If the vehicle has selectable driving profiles, the valve can be controlled through this system; vehicles without this function use the supplied button with LED indication. In Sport mode, the valve remains open while driving within the limits of the ECE regulations, but stays closed when stationary and between 20–80 km/h. In Comfort mode, the valve remains closed and opens within the permitted range when the throttle is 75% open.
Suitable for: Cupra Leon IV (KL1).
Manufacturer’s vehicle data
- EGO-X Abgasanlage 3,5″ Cupra Leon KL Sportstourer FWD 300 PS (mit ECE*)
Original product name by HG Motorsport (»z.B.« = e.g.). Please check model, year and engine of your vehicle before ordering; if in doubt, contact us and we will check for you.
Approval
Only the version marked “road legal” has a European ECE / EC approval (Bull-X Tronic controller with ECE or the HJS EC catalytic converter). Versions marked “no ECE, track use only” have no approval and are not permitted for road use. If in doubt about the version, contact us and we will check for you.

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