BULL-X Exhausts produces exhaust systems to the highest standard, including this 3-inch (76 mm) valved cat-back exhaust system for Audi S3 8L quattro models. The system is manufactured entirely without chambers, using the absorption principle, which ensures a deep and distinctive sound. It is suitable for both standard and performance-tuned vehicles.
Technical data:
- Exhaust tips available as either 2 × 76 mm round tips, slightly angled and rolled, or sharply angled tips.
- Other exhaust tips are available on request.
- Pipe diameter: 76 mm.
- The system’s silencers are TIG welded.
- Material: stainless steel.
Road use: This exhaust system is intended exclusively for use on the racetrack and is not permitted for public-road use without the appropriate approval. For road use, only the combination with the HJS EG-approved catalytic converter is permitted; all other offered catalytic converters and catalytic-converter replacement pipes are intended for racing use only.
Suitable for: Audi S3 I (8L).
Manufacturer’s vehicle data
- Bull-X Valved Abgasanlage 3″ Audi S3 8L quattro 210/225PS
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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