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The COBB bypass valve adapter fits 2002–2007 Subaru WRX and 2004–2017 WRX STI applications, providing a vehicle‑specific adapter for bypass valve installations. It is intended to allow compatible bypass valve components to mount to the factory plumbing on those WRX/WRX STI model years, preserving fitment where a direct adapter solution is required for installation.
Cobb 02-07 Subaru WRX/04-17 WRX STI BPV Adapter
