Feature 1 Complete with two tuning springs one for standard engines the second for remapped tuned 2 Complete with replacement O ring seal for the spring seat 3 This recirculation valve is the perfect replacement for the OEM valve 4 Easy installation with no modifications needed Specification Material AluminumColor BlueHeight 57mm 2 24inDiameter 3 2mm 0 12inFitment For Astra G MK4Zafira A 1998 2005 Z20LETFor Corsa D VXR 2007 Z16LERFor Astra H MK5 VXR 2004 2010 Z20LEHFor Zafira B VXR 2005 2012 Z20LEHFor Ford Focus ST MK2 For Ford Focus RS MK2 Engine Codes Z20LET Z20LEL Z20LEH Z20LET Z16LEL A16LEL Z16LER A16LER A16LES B16LERPackage Included 1 X Valve1 X Standard Spring1 X Yellow Spring