Does anyone have a source for a new FB split air pipe for the 13B 5/6th port actuation. I am attempting to mechanically restore this car with the intent of installing a Racing Beat street exhaust. However, apparently I need the split air pipe. Any suggestions would be appreciated. Does anyone know if an ‘86 FC pipe could be adapted (cut / welded / minor reshape)?
Thank you, Tony.

 

you could use the S4 NA FC pipe. its probably a little long, but if you had to cut it, you could put a piece of hose in there to make it work, its how the FD's are. in fact if you're really stuck you could buy the FD part that bolts to the cat and has the check valve, and then make the rest from AL tube.

plan B might be to use the Air control valve from an S5 NA, it has a nipple on the air pump inlet, and that is where those get the pressure to open the 6 ports from.