A faulty or clogged oil check valve can leak to premature turbo failure. Replacement of this part when installing a new turbo kit is crucial. USP Motorsports is a leading provider in Genuine parts directly from the dealership and/or the OEM factory. With quick order fulfillment times, your car will be back up and running before you know it. From maintenance parts to superior replacements, we offer an extensive catalog for all of your OEM parts needs.