Technically you can buy hose and a T from any autoparts store as long as the diameter is the same as the oem hose. Where your problem will be is the restrictor pills. Each side of the T (one goes to the turbo, the other to the wastegate) has a specific sized restrictor pill. You can buy the complete set for the T clamp and hoses directly from Subaru. That way you know it is the correct size everything.
Here is the link to the parts directly from Subaru: https://parts.subaru.com/a/Subaru_2...02_6021245/AIR-DUCT-02MY-05MY/G11-073-01.html
Within that diagram you would need all of the parts on the left hand side that make the "T". Here are the part numbers:
-H40306 (hose to wastegate)
-22315 (the T)
-0953S*B (hose to turbo)
-22326 (restrictor pill that goes in turbo side hose from T)
-0953S*A (hose from T to the turbo inlet)
-22314 (vacuum hose connector that goes from turbo inlet to hose listed about-0953S*A)
This may seem daunting, but it pretty easy to do. The hardest part is running the line from the turbo inlet under the intake manifold and to the turbo.
Here is the link to the parts directly from Subaru: https://parts.subaru.com/a/Subaru_2...02_6021245/AIR-DUCT-02MY-05MY/G11-073-01.html
Within that diagram you would need all of the parts on the left hand side that make the "T". Here are the part numbers:
-H40306 (hose to wastegate)
-22315 (the T)
-0953S*B (hose to turbo)
-22326 (restrictor pill that goes in turbo side hose from T)
-0953S*A (hose from T to the turbo inlet)
-22314 (vacuum hose connector that goes from turbo inlet to hose listed about-0953S*A)
This may seem daunting, but it pretty easy to do. The hardest part is running the line from the turbo inlet under the intake manifold and to the turbo.
