The Stainless Works collector adapter with a 3-1/2" inlet and 2-1/2" outlet is a TIG-welded 304 stainless steel transition piece with a 3-bolt flange for reducing diameter between collector and exhaust tubing. Built for corrosion resistance and durable service, it offers a precise stepped connection for custom exhaust work and comes with a limited lifetime warranty from the manufacturer.
Stainless Works Collector Adapter 3-Bolt 3-1/2in OD Tubing 2-1/2in OD Outlet