Would you like to achieve more power from your turbocharged engine while reducing the load on the turbocharger? This 3-inch Bull-X catalyst replacement pipe has a significant effect on response and performance. It forms the link between the upper section of the downpipe, or exhaust pipe, and the exhaust system. The larger pipe diameter and improved flow allow the turbocharger to discharge the processed exhaust gases through the exhaust system more easily.
This has a positive effect on torque and power while also reducing the thermal load on the turbocharger and surrounding components.
Benefits
- The turbocharger can discharge exhaust gases more easily, resulting in increased power.
- More torque, as the turbocharger reaches operating speed more quickly and is not slowed down as much.
- Lower exhaust gas temperature, reducing the thermal load on the turbocharger and surrounding components.
- Thanks to the OEM-style connection, installation is »plug and play«.
- It is also available with a 200-cell sports catalytic converter, a Bull-X EOBD catalytic converter or ECE approval.
Road use: The versions with the relevant ECE approval, as specified for the individual Ford Focus RS Mk.2 or Ford Focus ST Mk.2 variant, are intended for road use. Versions without ECE approval, including the cat-free version and the 200-cell sports catalytic converter without approval, are intended for track use only.
Suitable for: Ford Focus II (DA).
Manufacturer’s vehicle data
- Bull-X Katrohr 3″ Ford Focus RS/ST Mk.2 (mit ECE*)
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.

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