Bull-X Exhausts produces exhaust systems and downpipes to the highest standard. These 2.75-inch Bull-X replacement pipes are designed for the exhaust system of the Audi RS4 B9 and RS5 B9. The supplied material allows the original centre silencers to be refitted at any time.
- Material: stainless steel
- replaces the centre silencers
- without approval
- pipe diameter: 2.75″ / 70 mm
Note: The original centre-silencer pipes must be separated or cut while fitted to the vehicle for removal and installation. Complete removal is therefore not possible, allowing installation costs to remain very low.
Road use: This replacement pipe has no road approval and is intended exclusively for use on a race track. For lawful use on public roads, the vehicle must have an ECE-approved exhaust system combined with an EG-approved catalytic converter; other catalytic-converter combinations are intended for racing use only.
Suitable for: Audi RS4 V (B9), Audi RS5 II (F5).
Manufacturer’s vehicle data
- Bull-X VSD-Ersatzrohre 2,75″ Audi RS4/RS5 B9 quattro 450PS
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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