MACH 2 ATMOSPHERE UPGRADE KIT TO CONVERT T9107 & T9125 FROM RECIRCULATING TO ATMOSPHERE VENTING BOV.
CONSISTING OF TRUMPET, SPRING AND PLUG.
There is a harder spring supplied in this kit, as the valve needs to remain closed at idle when venting to atmosphere. This prevents stalling and backfiring.
VW POLO 2005 2006 2007 2008 2009 GTI 9N 1.8 GTI BJX 2005 – 2009
Part Number: 5925