Hedman's 3-Bolt flange hedder reducers are for use with Hedman Hedders fitted with 3-bolt gasketed collectors. Many of Hedman's newer hedder models utilize a ball & socket style collector. If your Hedman Hedders have this style of collector they do not require a gasket. Mild steel.
These reducers have built-in O2 sensor bungs.
SOLD INDIVIDUALLY.
Hedman Hedder O2 sensor reducers are sold individually, and come complete with all the necessary bolts, washers and gaskets. Manufactured from 16g material.