I opened my "authentic" Greddy bov's top to do the single spring mod and found this. I believe the authentic Greddy bov diaphragms are black are they not? It has Greddy on it and came in a Greddy/Trust box that all looks very authentic but i believe i have been duped. Can anyone confirm?

Thats how mine looks, real bov.

I'm 99.8% sure that both diaphrams on my GReddy BOV's are that same color. And I know for sure that mine are legit.

Are you serious? I havent seen many pictures of what they look like except for this one from the single spring mod guide:
That one looks like alot higher quality than the orange one in my origional picture

spyder604 said:

Are you serious? I havent seen many pictures of what they look like except for this one from the single spring mod guide:

You must be logged in to view this image or video.

That one looks like alot higher quality than the orange one in my origional picture

Click to expand...

this BOV is a knockoff, or an NGR a best.

SFrymyah said:

this BOV is a knockoff, or an NGR a best.

Click to expand...

Thats what I thought too. Just look at how cheap it looks compared to the one from the evo site.

SFrymyah said:

this BOV is a knockoff, or an NGR a best.

Click to expand...

Wait did you just say that the bov in the Evo picture is the knockoff?

spyder604 said:

Thats what I thought too. Just look at how cheap it looks compared to the one from the evo site.


Wait did you just say that the bov in the Evo picture is the knockoff?

Click to expand...

no no no - the one in your first post is legit. the one from the evo site is at least a knockoff housing, but it may be an NGR diaphragm.

SFrymyah said:

no no no - the one in your first post is legit. the one from the evo site is at least a knockoff housing, but it may be an NGR diaphragm.

Click to expand...

What makes you think the evo one has a knockoff housing? You can see on the side it has the extrusion that would say Greddy if you were looking at it.

spyder604 said:

What makes you think the evo one has a knockoff housing? You can see on the side it has the extrusion that would say Greddy if you were looking at it.

Click to expand...

because of the top half of it thats laying behind it. The greddy one is supposed to have a sticker on the top of it. Also, the knock offs still have the extrustion on the side, they just dont have the greddy letters on it, so its really kind of dificult to tell otherwise.

Regardless, from the looks of that top section, I'm betting it a dud.

SFrymyah said:

because of the top half of it thats laying behind it. The greddy one is supposed to have a sticker on the top of it. Also, the knock offs still have the extrustion on the side, they just dont have the greddy letters on it, so its really kind of dificult to tell otherwise.

Regardless, from the looks of that top section, I'm betting it a dud.

Click to expand...

evo forums is real other seems fake, you can tell it says greddy on the side thers a little hump the top greddy logo plate just fell off.. look closer.. plus the blue gasket is a give away..

The one in the evo pic def says Greddy as you can see in this different pic. As for the top it is a sticker that you have the option to put on or not so that does not mean anything.

So it's very well possible that GReddy made a running change on these at some point and that they haven't always used the same diaphram. I know both of mine are 8+ years old so maybe the orange diaphram units are simply older models...?

99gst_racer said:

So it's very well possible that GReddy made a running change on these at some point and that they haven't always used the same diaphram. I know both of mine are 8+ years old so maybe the orange diaphram units are simply older models...?

Click to expand...

Ok well if you say that yours has the orange diaphragm I will give it a try and put it on my car...see if it makes that signature whistle or not!

spyder604 said:

Ok well if you say that yours has the orange diaphragm I will give it a try and put it on my car...see if it makes that signature whistle or not!

Click to expand...

my friend got the fake one and I thought it sounded pretty cool, he on stock boost for now so he should be alright.. His fake dont look anything close to yours though.. maybe it is just the older one like he says..

I opened up my SSQV to modify it... Fake SSQV BTW from some ebay company. To find that it has a HKS Diagram!

Well all I can say is that I wish it was an older model diaphragm...but unfortunately it was not. No whistle, only a dump woosh. Thats okay though, because I just got my new NGR type S in and it sounds/works amazing! Highly recommend it!

Well, I was wrong. I just opened up my GReddy BOVs tonight and found them both to have black diaphragms. I don't know how I screwed that up. I must have been thinking about the orange diaphragms in my Tial gates... Just figured I'd post to correct my previous statements.

NGR diaphrams are stronger then GReddy's:
http://s495.photobucket.com/albums/rr316/ngrperformance/ngr/?action=view&current=diahpragmcomp2.jpg

They also don't come in a GReddy box or GReddy inmprinted on the side.
http://s495.photobucket.com/albums/rr316/ngrperformance/ngr/?action=view&current=bov41.jpg

Who knows what you have.

ryanx99GS said:

NGR diaphrams are stronger then GReddy's:
ngr :: diahpragmcomp2.jpg picture by ngrperformance - Photobucket

They also don't come in a GReddy box or GReddy inmprinted on the side.
ngr :: bov41.jpg picture by ngrperformance - Photobucket

Who knows what you have.

Click to expand...

I know I meant that I decided not to put that fake BOV on my car and buy an NGR - and I did and it works great

late post, but jw how you can tell from just the look of the outside shell? and if it has the GREDDY frame on it then that means it's real? jw thanks

I have a greedy thats 12 years old that has the orange diaphragm.

Theturdburgler said:

I have a greedy thats 12 years old that has the orange diaphragm.

Click to expand...

Just got one from ebay with the orange diaphragm too. Has GREDDY on it and blue gasket....Looks just like the top pix. Anyone elses thoughts about it? Real or fake? I'm getting really suspicious about mine....

My Type S is 100% authentic, and has a Black Top. This was Purchased overseas. It's more than 12 Yrs old. It Originally had a Black Diaphragm, but has since been switched out to run the NGR Orange Diaphragm. I did not put the sticker on top.

Most of the Type S's sold here were the purple anodized, however they were available in silver, blue, and black

Anyone else have any info on the orange diaphragm and not being an NGR?

InfiniteGSX said:

I opened up my SSQV to modify it... Fake SSQV BTW from some ebay company. To find that it has a HKS Diagram!

Click to expand...

Yup same here. Brand new off ebay many many years ago.