I pulled a part off of a stock S5 T2 rx7 and I don't know what it is.
It's the part that goes in between the turbo and the top mounted intercooler. It has another inlet for another hose to lead into it but I don't know where that hose goes either.
The reason why I ask is because the part I pulled off had HKS stamped into it and the word "yes". I'll get a pic up ASAP.

 

Post a picture and I can tell you exactly what it is. Sounds like the a blow off valve to me though.

Does it look something like this???

 

That right there is a Buck Rogers Space Cadet Bicycle Air Siren.
Very rare.

It will alert you to the presence of Ming the Merciless...if that's something you're worried about.

 

^

 

**** vibrator for Chewbacca.

 

If we were talking OEM, Mazda's name for that piece between the turbo and intercooler is a charge pipe. You obviously have some aftermarket piece, but the name pretty much still applies.

 

Of course, the blow off valve attaches to that pipe. Still a little early for me. My coffee is sitting on my desk - and I have not drank it yet.

 

100% it isn't a BOV because it's hollow all the way through.
Attached is a picture I could find of the part.
I'll get the actual picture up tonight!

 

Sorry about the picture for ants, didn't think it was that tiny.
-_- I'll get the picture up tonight like I said.

 

Sounds to me like a charge pipe. The tube coming off of it goes to the BOV. You probably have an aftermarket piece for use with an aftermarket BOV.

 

You should be ashamed for creating a nerdapacolypse. You have melded two different sci-fi universes together. Everyone knows that Buck Rogers arch enemy was Killer Kane, while Ming the Merciless was Flash Gordon's arch enemy!!

Pathetic Earthlings!!
<iframe width="560" height="315" src="//www.youtube.com/embed/VzFwECV8Kkk" frameborder="0" allowfullscreen></iframe>

Or, if you prefer Freddie Mercury serenading you...
<iframe width="420" height="315" src="//www.youtube.com/embed/MS4_Z84-rRE" frameborder="0" allowfullscreen></iframe>

 

I mod my cultural references like I mod my car...indiscriminately!

 

the part's name is................... steve

 

Here it is. Is it worth keeping? What does it do? Can I use it with a front mounted intercooler and aftermarket bov?

 

Antique hks blow off valve, predates the other ones posted in the thread above...have only seen a few of them in the states. Keep it if it works.

 

might have historical value to a ricer museum.

hell, that might be the first part they ever sold...in 1974. paving their way to fame and glory!

 

Wait, so it's a stock factory upgrade BOV from HKS???????

 

Stock, no, but stock fitment, yes. Looks similar to the Blitz unit that's all over eBay.

 

Alright, yep it's an old school BOV.
Just found a picture of another one attached to another pipe.

 

Lol, did you think everyone was lying?

 

No, I just wasn't convinced myself.
I've never seen one like it so when everyone was saying BOV I wanted to just see if there was someone else that had one.

 

probably not, it appears to be about as old as i am.

 

when you get that old,a Blow off valve is called : your ***.
My spring is busted..cough..woof..