This additional Z4 Kit is required together with either the Turbosmart BMW M54 Dual Port Bov, or the Turbosmart BMW N54 Plumb Back Recirculating Bov for all E90 Z4.
Z Series E89 Z4 35i (N54) from 2009 - 2015
TS-0203-2001
Manufactured by
Turbosmart
Warranty
One year warranty