Dump Valve Spring (Single) Volkswagen > T5 > T5 (2003-2009) > 2.5 (130-174) Fits M3 CSL and Z4M

Fits M3 CSL and Z4M models - Please check anti roll bar diameter before ordering

80mm Bellows Flexible Silicone Hose

benefit from an impressive air temperature reduction of 6-9°C

This adapter plate is installed in combination with the OEM solenoid valve which will generate the "whoosh" or dumping noise

Dump Valve Spring (Single) Volkswagen > T5 > T5 (2003-2009) > 2.5 (130-174) Fits M3 CSL and Z4MThese are the individual springs sold in our FMDVTUN kit. Please select the colour you require using the options above. Please check the measurements of your spring against those pictured before purchasing If you are finding that the valve is dumping more than required, or if you are losing boost pressure it is normally an indication that a stronger spring is required. Alternatively, if the valve is failing to dump it may be necessary to install a