they will fit in to b16a ,
The manifold are one piece type , from the top header mount to the catalys adapter ,
if this o2 sensor wont fit to your plug , you could use your stock o2 sensor .
Got myself an early chinese new year present. OS Giken released a new clutch series and here are some pics. It comes as a set complete with flywheel, conversion kit to push type, intergrated throw out...