TiAL F38 Wastegate - 14.50 psi/1.00 bar (lrg. blue) spring, Red Body Item ID: TIALWGF38-14.50-RED Size (spec): 38mm Valve Material (spec): Aluminum Actuator Body, Cast Stainless Steel Valve Body Pressure Rating (spec): 14.50 psi (1.00 bar); Finish (spec): Red