The Bull-X downpipe for the Audi S4/S5 B9 3.0 TFSI from HG Motorsport can replace the standard part completely. Perfect fitment and high-quality materials make this a high-quality solution. By optimising the diameter and pipe routing, this product is ideal for tuned engines and for fully developing the exhaust sound. The difference in sound is particularly pronounced when used with a modified exhaust system.
- Straight Pipe version without catalytic converter, with integrated heat insulation
- Plug’n’Play solution
- Perfect fitment; simply replaces the original component
- High-quality materials
- Made in Germany
- 100% TIG-welded in our own production facility
- Flow-optimised and performance-enhancing
- Improved durability and throttle response
- Optimal evacuation of exhaust gases
- No disruptive edges at the transitions
- Designed and tested using computer modelling and on a dynamometer
Road use: This catless version is not permitted for use on public roads and is intended for track use only. For legal road use, only a combination with an EG-approved catalytic converter from HJS is permitted; all other catalytic converter versions and decat pipes are intended for track use only.
Suitable for: Audi S4 VIII (B9), Audi S5 II (B9).
Manufacturer’s vehicle data
- Bull-X Downpipe Audi S4/S5 B9 quattro 354PS
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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