Upgrade K04 015 Turbo Turbocharger Turbolader Compatible for Audi A4 A6 VW 1.8T K04-015[description] Description A turbocharger (also called turbo), is a turbine driven forced induction device that increases an internal combustion engines efficiency and power output by forcing extra air into the combustion chamber. The objective of a turbocharger is to improve an engine's volumetric efficiency by increasing the density of the intake gas (usual air) allowing more power per engine cycle. Mxr us. myshopify. com provides turbocharge for