Torque Solution Turbo Sump Restrictor | Subaru WRX/Forester XT (TS-SU-514)Torque Solution Turbo Sump Restrictor Part #: TS SU 514 Overview The Torque Solution Turbo Sump Restrictor is a precision engineered component designed for Subaru WRX and Forester XT models. This restrictor is crafted to optimize turbocharger performance by controlling oil flow from the sump, helping to maintain consistent boost levels and improve overall engine reliability. It is ideal for enthusiasts seeking to enhance their vehicles turbo response