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This JBA Y-pipe for 1988–1991 GM C/K pickups with 7.4L engines helps open mid-system flow and enhances exhaust sound. Hand-polished to a mirror finish, it uses mandrel-bent 409-series stainless tubing, provides O2 sensor provisions where required, and includes factory-style hangers, heavy-duty flanges and installation hardware for a professional, no-leak fitment alongside stainless headers.
JBA 88-91 GM C/K Pickup 7.4L 409SS Emissions Legal Y-Pipe
