Stainless Steel 2-1/2" Exhaust Header 3 Bolt Collector w/ O2 Oxygen Sensor Bung

Header Collector Reducer 2.5 to 2-1/2 Inch Weld-On 3-Bolt Flange Stainless Steel

3" to 2.5" Exhaust Collector Reducer with O2 Sensor Bung, 3-Bolt Flange

GlowShift 1-3/4"-2" Wideband O2 Sensor Bung Clamp-On Adapter - No Weld Design

3" to 2.5" Collector Reducer w/O2 Bung - Hedman Hedders - Steel Exhaust Part

Hedman for 3 in. 3-Bolt Gasket-Style O2 Header Reducer for 2-1/2 in. Exhaust-

3 Bolt Stainless Steel 2.5" Exhaust Manifold Header Collector with Oxygen Sensor