Product description: The HPerformance 4 inch 101.6mm downpipe comes directly from the development of our 1/4 mile vehicle to series production. It is the first downpipe in the world to be consistently built with this pipe diameter. It begins at the turbocharger outlet and thus replaces the standard pre-catalyst. Depending on which variant you order, you will either have no catalytic converter, two 100-cell catalytic converters or two 400-cell catalytic converters (our TÜV variant). The pipe diameter reduces the exhaust gas back pressure by up to 30% (depending on the boost pressure, the turbocharger and other peripherals) and thereby massively reduces the engine's tendency to "knock" on cylinders 2 and 3 - which is the case at the latest with 700 HP on 102 octane and 820 HP on E85 begins. During our turbocharger development, we were able to determine several times that the difference between 3.5 inches, i.e. 88.9mm, and 4 inches, i.e. 101.6mm, even with a downpipe directly onto the floor of the vehicle, is up to 20HP and 25NM as well as a reduction in exhaust gas back pressure by up to 0.15 bar resulted.  hese advantages are now also available for the street, as the downpipe has made it ready for series production. Any change to catalytic converters (replacement, change of cells or size - different from the original condition) requires a software adjustment to the engine control unit. With our remote flash solution, we also offer suitable tunings for the DNW 2.5 TFSI.Important: Important: Our so-called TÜV catalytic converters / TÜV downpipe are delivered without TÜV documentation. In combination with our software and hardware, it meets the requirements for TÜV registration and can be registered in-house or at one of our dealers. Without this entry the downpipe is not legal. Please Note: Any of our items are not deisgned for beeing used street legal. Products that are street legal are marked as such. The offered items are for racing application only and must be installed by professional workshops with corresponding know how. If you want to install the parts on your own, please inform yourself up front, if you are able to handle the installation. You can also ask our technicans on the phone. We cannot take back items that have been incorrectly installed.

Product description: Brand new AUDI front bevel box - part number 0AV409053AE  - 0AV 409 053 AE Please Note:Any of our items are not deisgned for beeing used street legal. Products that are street legal are marked as such. The offered items are for racing application only and must be installed by professional workshops with corresponding know how. If you want to install the parts on your own, please inform yourself up front, if you are able to handle the installation. You can also ask our technicans on the phone. We cannot take back items that have been incorrectly installed.