You need a universal weld-on flange. That one you are looking at turns a stock RX-7 bov flange into one that is compatible with a Greddy bov.

 

what about this guys. what if i use this silicone piping for the in piping and 2.5 for out the IC to the TB and not aluminum. and just have a little section of alum. for the BOV, supported of course.
Silicone i BELIEVE has better flow and is better for cold air transfering. Ive seen this done on WRX, where they have actual kits and gain HP . smoother bends and what not. its rating meet and beat what ill be seeing. plus no welding, whatcha think
http://cgi.ebay.com/ebaymotors/2-3-p...4163QQtcZphoto

 

I don't like the idea. Just get it made from aluminum.

 

this one?
http://cgi.ebay.com/ebaymotors/Gredd...QQcmdZViewItem

 

That'll work. Since you are just buying everything that I have a spare of, I have one of those lying around too in the bag, never been touched, if you are interested.

 

lol what else do u have
is it aluminum?

 

I think that is all I have that you may be interested in. It is aluminum. I had planned on using it for new charge piping when I got my Skunk2 manifold, but I ended up not needing it.

 

the charge piping fit with the S2 mani? i thought it wouldnt since the mani is raised a good amount

 

It took a little struggling and cutting, but it fits. The couplings are a little stretched out, but I have spare ones on hand just in case these ones let go.

 

damn, thats one of the reasons i didnt get a entire kit. cuz i figured the piping that came with it wouldnt fit my S2.....grrrrrrrr oh well.
BTW did you get my PM's?