The Stainless Works collector adapter is a 3-bolt exhaust transition made from 304 stainless steel for strong corrosion resistance and long life. It provides a 3-1/2" flange to a 3" OD outlet and is fully TIG welded for durability. An O2 bung is welded into the tubing about 2" from the flange edge. Comes with a limited lifetime warranty and is made in the USA.
Stainless Works Collector Adapter 3-Bolt 3-1/2in OD Tubing 3in OD Outlet + O2 Bung