Electronic StraightGate40 ESG40 External WastegateThe StraightGate40 from Turbosmart is the smallest butterfly style external wastegate for tight engine bay confines and fitment. The StraightGate40 is a zero offset butterfly style wastegate which allows enormous flow and almost linear control with unparalleled boost control throughout the entire operating range. Turbosmarts eSG40 Electronic StraightGate is a Patent Pending and based on the success of the Multiple Award Winning, World First eSG50