This EGO-X exhaust system for the Seat Leon 5F 1.8 TSI, with a left-side outlet, is hand-built using TIG welding. It consists of absorption silencers without chambers. The pipe diameter is 3 inches (76 mm).
Technical details
- Pipe diameter: 3″ (76 mm)
- Pipe material: stainless steel
- Absorption silencers: hand-built
- Cat-back
- TIG welded
Scope of delivery
- Exhaust system from the catalytic converter
- Cabling for connection to the vehicle electronics
- Vacuum hose for connecting the Bull-X Tronic control unit to the exhaust valve
- Exhaust tips (available as an option)
- Fitting instructions
- Fitting hardware
- Bull-X Tronic control unit (when selecting the ECE version)
Exhaust valve control
If the vehicle has drive profile selection, the valve can also be controlled through this function. For vehicles without drive profile selection, control is possible using the supplied button. The button’s LED indicates the valve status: the light is off when the valve is open and on when it is closed.
The Bull-X Tronic control unit provides two operating modes:
- Sport (Dynamic, Race): the valve remains open while driving within the limits of the ECE approval and is always closed when stationary.
- Comfort: the valve remains closed, but opens while driving within the limits of the ECE approval from 75% throttle opening.
Road use: ECE approval applies only when the Bull-X Tronic control unit with ECE approval is selected. In combination with the Bull-X Tronic control unit and an EG-approved catalytic converter, the system is permitted for use on public roads. Versions with the Bull-X Tronic “Race” control unit, switch or remote-control operation, and other combinations without ECE approval are intended for track use only.
Suitable for: SEAT Leon III (5F) / III (5F1).
Manufacturer’s vehicle data
- EGO-X Abgasanlage 3″ linksseitig Seat Leon 5F 1.8 TSI 180PS (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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