So if they have stronger springs how does that help.
Im sorry but i have no idea what they do.
The pipe on the actuators is fed from the plenum, so when he boost reaches a level greater than the resistance of the spring the wastegate opens and releases air directly into the exhaust.
Stronger spring means more pressure is required to open the waste gate.
All actuators have a degree of adjustment by means of preload, but there will come a point regardless of pre load that they won't adjust anymore. The stronger the spring the higher this threshold will be.
Well thats what I understand anyway!?
HKS items will have stronger springs and a nice HKS sticker.