Bull-X 2.75″ downpipe for Audi S6/RS6, S7/RS7 C7/4G, S8 4H 4.0 TFSI

BULL-X Exhausts produces downpipes to the highest standards. These Bull-X downpipes are a direct replacement for the original components. Precise fitment and high-quality materials make them a top-quality product.

The optimised diameter, pipe routing and catalytic converters significantly reduce the load on the turbochargers. Lower back pressure provides a noticeable increase in torque and power, together with earlier engine response. The reduced thermal load also helps to extend component life.

Features

• Plug & Play solution with precise fitment
• Simple replacement for the original component
• High-quality materials
• One-piece cast outlet flange for maximum flow optimisation
• Made in Germany – genuine quality from the manufacturer’s own production
• Optimised flow and increased performance
• Improved durability and throttle response
• Optimal exhaust gas evacuation without disruptive edges at the transitions
• Designed and tested using computer analysis and on a dynamometer
• Pipe diameter: 70 mm
• Includes an adapter for connection to the standard exhaust system

Note: As the original front exhaust pipes cross over, the lambda sensors must also be fitted crosswise after installing these downpipes: connect the sensor from the left-hand routing to the right-hand downpipe, and the sensor from the right-hand routing to the left-hand downpipe. Not compatible with an Akrapovič exhaust system, as this uses different front silencers.

Road use: Only the version with the EG-approved HJS catalytic converter is approved for use on public roads. Versions without a catalytic converter and versions with catalytic converters without the appropriate EG approval are intended exclusively for use on a race track.

Suitable for: Audi RS6 IV (C7), Audi RS7 I (C7), Audi S6 IV (C7), Audi S7 I (C7), Audi S8 III (D4).

Manufacturer’s vehicle data

• Bull-X Downpipes 2,75″ Audi S6/RS6, S7/RS7 C7/4G, S8 4H 4.0 TFSI

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.