Product description: The HPerformance TC870XT steelblock 700HP kit is the strongest option that we offer for the old steel block generation. The kit includes all parts you need to get a fully virgin RS3 8V1 or RS Q3 8U CZGB to a reliable horsepower level of 700 and 850NM of torque. The kit is designed to perform 700HP continously under any condition, reproduceable. The kit combines all benefits of our mordern 870XT hybrid turbo with the requirements of a steel block engine. The reliability of the turbo is due to the journal bearing section guaranteed over time. The engine pack includes all necessary parts to build up a disassembled engine. The chargecooling is a major key of this kit. Our Sport and Race Series intercoolers are able to handle this power over time. Thefueöing system is upgraded by a 12mm high pressure fuel pump. Pressure sensors allow to monitor the ECU the actual boost, also above 2 Bar / 30PSI. The kit requires software tuning. The kit can be TÜV apprved on a lower power level. 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.