Hedman Oxygen Sensor Hedder Reducer - 3 in. Ball and Socket Flange YA0859 Block Adapters Have 1/8" NPT

Block Adapters Have 1/8" NPT Ports for Connection of the Steam Tube Hose

292 cc Intake

Gasket Nozzle Assembly

Gentle On Rotors

1991-1997 Chevrolet P30

Hedman Oxygen Sensor Hedder Reducer - 3 in. Ball and Socket Flange YA0859 Block Adapters Have 1/8" NPTHedman Hedders Ball And Socket Style O2 Sensor Header Reducers For 2 1 4" Exhaust System; 3 Bolt Triangular Flange Hedman's Ball & Socket style hedder reducers are for use on Hedman Hedders with a ball style collector. The Ball and socket configuration is a durable, gasket free design. These ball & socket style reducers have built in O2 sensor bungs. SOLD INDIVIDUALLY. Hedman Hedders Oxygen Sensor Hedder Reducer 21117 3 in. Ball and Socket Flange