Hedman 21126 O2 Sensor Header Reducer, 2-1/2 in. Collector to 2-1/4 in. Exhaust

Adapt a 2-1/2 in. header collector to a 2-1/4 in. exhaust with this Hedman Hedders header reducer. It uses a 3-bolt triangular flange and has a built-in 18 mm oxygen sensor bung, so you can run an O2 sensor without adding a separate bung.

• 2-1/2 in. 3-bolt collector to 2-1/4 in. exhaust
• Mild steel, raw finish
• 18 mm O2 sensor bung
• 5/16 in. flange thickness
• Includes reducer, gasket, bolts, nuts and washers
• O2 sensor not included

Sold individually.