New diaphragm of the Disa for the engine M43TU, M43, M42, M44 For OEM numbers: 11611438404 11611435715 11611247202 For Cars with engines M43TU, M43, M42, M44: 3′ E36 3′ E46 5′ E34 Z3 E36 Originally sold only entire valve assembly, we sell the membrane separately. The new DISA BMW M43TU unit costs about $ 250. Our company offers the only true solution – the replacement of the diaphragm for a new one, which will restore the efficiency of the node for changing the geometry of the intake manifold of BMW Disa.