The Subaru Uppipe to Turbo Gasket is a metallic crush style that is a one time use product. Replace it every time you remove or upgrade your up-pipe or turbo. A leaky up-pipe pipe gasket can cause a tuner to lose his mind as the boost will not be stable or predictable and will cause the turbo to spool slower thus losing horsepower and torque.
SUB-44022AA150 = 3-stud up-pipe gasket
SUB-44022AA170 = 2-stud up-pipe gasket
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