This is a USED pair of header collectors, 2 1/2" OD out and 4 1/2" Bolt Circle 4 1/2" long.
Header Collector Exhaust Reducer - 2.5" Collector to 2.5" Outlet - AWHC212
FLO-PRO Header Collector Kit w/ Gaskets - Reducer - 3" Collector to 2.5" Outlet
Header Collector Exhaust Reducer - 3" Collector to 2.25" Outlet - AWHC300
(2) Schoenfeld Header Collector Steel Painted 2 1/8" Primary 4.00" Out 4 into 1
(2) Schoenfeld Header Collector Steel Painted 2.0" Primary 3.50" Outlet 4 into 1
