Bull-X downpipe Audi RS3 8V/8Y, TTRS 8S, Cupra VZ5 OPF 400hp (HGPE25TFSIOPFM)

BULL-X Exhausts produces downpipes at the highest level. The HG-Motorsport downpipe for the Audi RS3 400PS with OPF and TTRS 8S 400PS with OPF is a 100% direct replacement for the factory part. Perfect fit and high-quality materials make this item a top product in our range. By optimising the diameter, pipe routing and/or catalytic converter, the load on the turbocharger can be greatly reduced. Lower back pressure and reduced thermal load produce a clear gain in torque and power, an earlier response, and at the same time extended durability.

Technical details:

• - made of stainless steel - optionally with cat replacement pipe, incl. 2x100-cell sports cat, incl. 2x200-cell sports cat, with Bull-X 2x200-cell EOBD sports cat by HJS - without operating licence The advantages at a glance: - Plug & play solution - perfect fit, simply swaps for the original component - high-quality materials - Made in Germany - genuine quality from our own production - flow-optimised and performance-enhancing - improved durability and response - optimum evacuation of exhaust gases - no disruptive edges at the transitions - designed and tested on the computer and on the dyno - No more heat build-up at the turbocharger, and therefore less thermal load on the turbo - Better response and a measurable slight power gain Note: a software adaptation is necessary when fitting this downpipe. The temperature sensors and the differential pressure sensors must be coded out. The downpipe is supplied without connections for these sensors to avoid unnecessary costs. With our software solution, however, the differential pressure sensors remain fitted in the vehicle and are simply connected to each other in a loop (the two sensor hoses are simply plugged into each other, as the tolerance value is reprogrammed here). This item is not approved for use on public roads - For racing purposes only! CAUTION! All catalytic converters/cat replacement pipes offered, except the EC-tested catalytic converter from HJS, are not approved under the German road traffic regulations! Only with the EC catalytic converter may you legally drive your vehicle on public roads. The use of all other catalytic converters is intended for racing purposes only. If, despite our notice, you fit a downpipe with a catalytic converter WITHOUT EC approval, you are committing a criminal offence. Possible consequences include: invalidation of the operating licence, decommissioning of the vehicle, a complaint for tax evasion and possible investigations by the environmental authority. Catalytic converter information If you select a downpipe without a cat or with a 100/200-cell cat, the control unit may log an error message from the post-cat lambda sensor; this does not restrict driving, as the first lambda sensor is still there for engine management. The post-cat sensor is only responsible for monitoring the cat’s effectiveness. This can be programmed out by a chip tuner by adapting the software. Most vehicles up to the Euro 3 emissions standard have no post-cat oxygen sensor, and installation is possible without further adaptation and without error messages. The washcoat content of HJS ECE and EOBD cats is significantly higher and is characterised by a very high oxygen storage capacity, which means error messages can be avoided. The EOBD cats have been tested for this up to Euro 4. Durability and use up to the Euro 6 emissions standard are of course guaranteed. On Euro 5/6 vehicles, the points mentioned above can only be avoided if a cat with ECE approval is selected. For more information on emission classes and how a catalytic converter actually works, please click here. The following catalytic converter is fitted in the downpipe with ECE: CLICK HERE

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