This Improved 'working ratio' is achieved through an increase to the effective surface area of the diaphragm & revisions to the actual springs fitted resulting in greater leverage of the forces the actuator is working against (boost and backpressure) while still being super-responsive

which in turn requires top level driving skill and ability to adapt to a new setup

The Dual Port is a 50-50 recirculation/vent-to-atmosphere valve for that classic vent-to-atmosphere sound at high boost

\n\nThe Kompact EM Valve Series from Turbosmart takes the motorsport proven billet valve technology and adds an onboard proprietary solenoid system and internal pressure control channels for a simple plug & play valve with full OE integration and control

and Green Spring Rated -12 to -8 InHg (installed)

Concaver CVR1 22x9,5 ET57 5x130 Carbon Graphite VSR7 This Improved 'working ratio' isPCD: 5x130 ET: 57