BULL-X Exhausts produces downpipes to the highest standard. The EGO downpipe for the Polo AW1 2.0 TSI from HG Motorsport is a direct replacement for the standard part. Precise fitment and high-quality materials make this a high-quality product. Optimising the diameter, pipe routing and/or catalytic converter can significantly reduce the load on the turbocharger.
On the EGO downpipe, the complete upper section and the lower section up to the flex section are manufactured as a single cast piece. After the 84 mm turbocharger outlet, the downpipe increases to a diameter of 121 mm. The 3D-calculated flow analyses provide the maximum exhaust gas flow achievable with a single cast component. Reduced back pressure and lower thermal load deliver a noticeable increase in torque and power, together with earlier response and extended service life.
Note: For vehicles with a manual gearbox, we recommend using a reinforced torque mount, as the original mounts wear out very quickly. Due to the larger pipe diameter, contact and noise may otherwise occur.
Technical details:
- Upper and lower sections up to the flex section made as one piece from cast stainless steel
- After the 84 mm turbocharger outlet, the downpipe increases to a diameter of 121 mm
- Made from stainless steel
- Fully TIG welded
- Optionally available with integrated thermal insulation
- Available without a catalytic converter, with a 100-cell sports catalytic converter, a 200-cell sports catalytic converter, a Bull-X 200-cell EOBD sports catalytic converter by HJS, or a 200-cell HJS sports catalytic converter with ECE approval
- Includes a stainless steel reducer for straightforward installation to the standard exhaust system
- Plug and Play fitment to Bull-X/EGO-X exhaust systems
Note: This downpipe, regardless of the catalytic converter variant, is suitable only for Polo AW1 models with an oxidation catalytic converter. It is not suitable for vehicles with an OPF petrol particulate filter from model year 2019 onwards.
Road use: Only the version with the EG/ECE-approved HJS catalytic converter is permitted for public road use. All other catalytic converter versions, as well as the catless version, are intended exclusively for track use.
Catalytic converter information
When selecting a downpipe without a catalytic converter or with a 100- or 200-cell catalytic converter, the engine control unit may display a fault from the post-catalytic-converter oxygen sensor. This does not affect driving behaviour because the first oxygen sensor, which is used for engine control, remains in place. The post-catalytic-converter sensor is used only to monitor catalytic converter efficiency. The warning can be removed by adapting the software.
Most vehicles with an emissions standard up to Euro 3 do not have a post-catalytic-converter oxygen sensor, so installation is possible without further adaptation or a warning. HJS ECE and EOBD catalytic converters have a significantly higher washcoat content and very high oxygen storage capacity, which can prevent fault warnings. The EOBD catalytic converters have been tested for this purpose up to Euro 4. Their durability and use are suitable up to the Euro 6 emissions standard. On Euro 5/6 vehicles, the issues described above can only be avoided by selecting an ECE-approved catalytic converter.
The ECE-approved downpipe version is fitted with a pre-catalytic converter and a main catalytic converter.
Suitable for: VW Polo VI (AW).
Manufacturer’s vehicle data
- Bull-X EGO Downpipe Polo AW1 GTI 200PS (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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