GFB ATOMIC Manual Boost ControllerIt is important to note that the Atomic does NOT use a "ball and spring" system like others on the market, for very good reason. The ball and spring system is an attempt to increase the boost rise rate by preventing pressure from reaching the wastegate during spool up. However, in practice this method usually creates boost spiking and a less stable and repeatable boost curve. Instead, the Atomic uses a precision orifice and needle valve system to