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 .
I don't know about you guys, but I love it when toy companies like Hot Wheels produce real derivable cars. For their latest creation, Hot Wheels turned an X-Wing into a car of Star Wars' enthusiasts' dream.