This EGO-X exhaust system for the Audi TT RS 8J is hand-fabricated using TIG welding and features absorption silencers without chambers. The pipe diameter is 3.5″ (89 mm).
Technical details
- Pipe diameter: 3.5″ (89 mm)
- Pipe material: stainless steel
- Absorption silencers: hand-fabricated
- From the catalytic converter backwards
- TIG welded
Scope of delivery
- Exhaust system from the catalytic converter backwards
- Cable material for connection to the vehicle electronics
- Vacuum hose for connecting the Bull-X Tronic controller to the exhaust valve
- Fitting instructions
- Fitting hardware
- Bull-X Tronic control unit (when selecting the ECE version)
Road use: ECE approval applies only to the combination with the Bull-X Tronic control unit with ECE approval and an EG catalytic converter. This combination is intended for use on public roads. All other control and catalytic converter options are intended for track use only.
With the ECE version, the Bull-X Tronic control unit automatically operates the valve while driving in accordance with the homologation requirements. In Sport mode (Dynamic, Race), the valve remains open while driving within the limits of the ECE regulations and closed when the vehicle is stationary. In Comfort mode, the valve remains closed and opens while driving within the approved range at 75% throttle opening. If the vehicle has no drive profile selection, the supplied push button can be used for control. Its LED indicates the valve status: light off means open and light on means closed.
Note: The convertible/roadster version is available with on-site fitting only.
Suitable for: Audi Ttrs I (8J).
Manufacturer’s vehicle data
- EGO-X Abgasanlage 3,5″ Audi TTRS 8J quattro 340/360PS
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
This part has no ECE, ABE or Teilegutachten approval — it is intended for track / off-road use.

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