The Kooks 2-1/2in 3-bolt collector flange is a stainless flange with a 2-1/2in opening and three bolt holes sized for 3/8in bolts. Machined from 3/8in thick 304 stainless steel and sold individually, it supports collector and exhaust joins that require a secure 3-bolt flange and is suitable for custom fabrication or repair work.
Kooks Universal 2 1/2in SS 3 Bolt Coll Flange