MST Performance Induction Kit For BMW G01 X3 M40i & G02 X4 M40iThe MST Performance Induction Kit (MST BW X301) is designed to optimise airflow, turbo efficiency and induction sound for the pre LCI BMW G01 X3 M40i and G02 X4 M40i. This high performance intake system replaces the restrictive factory airbox with a free flowing, precision engineered setup that enhances both throttle response and noise. This kit includes a high flow performance air filter, a heat shielded airbox, and smooth aluminium pipework for