K04-0064 FORGED Turbocharger K04 500HP Bolt on Dual ball bearing turbocharger including billet actuator and modified compressor housing outlet, silicon hose (bolt on) gaskets, hardware installation kit and all fittings. The turbo includes a billet DV and BOV - with extra springs for the actuator and DV. https://www.youtube.com/watch?v=DHtFdG6n-ek&t=1s 

The spare actuator springs that are supplied have the following Spring rates:- 

White = 3.6 - 7.25PSI

Green = 5.8 - 10.15SI

Yellow = 8.7 - 14.5PSI

Blue = 13 - 18.5PSI

Red = 17.4 - 24.65PSI

Lower values indicate pre-compression (spring cracking) and fully open positions. 

The DV springs supplied have the  following Spring rates:- 

Black = 10-16PSI

White = 16-22PSI

Yellow = 22-27PSI

Blue = 25-32PSI

Red = 27-35PSI