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The Stainless Works 2-1/2" to 2-1/4" collector adapter with an O2 bung combines a TIG-welded 304 stainless adapter and a 3-bolt flange with a welded O2 bung located about 2" from the flange edge. It simplifies installing an oxygen sensor downstream of a collector while providing a durable, corrosion-resistant stepped connection. Made in the USA and backed by a limited lifetime warranty.
Stainless Works Collector Adapter 3-Bolt 2-1/2in OD Tubing 2-1/4in OD Outlet + O2 Bung
