MuchBoost B47D20 Hybrid Upgraded Turbochargers with Custom Billet Compressor Wheel and a Clipped Turbine Wheel. They are based on original KKK (BorgWarner) turbochargers, which means that the installation is 100% P&P. The turbocharger set is meant to work with BWM 320d G20/G21, 520d G30/G31, 620d G32, X3 20d G01, and X4 20d G02 equipped with the […]