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For Sale hahn blow off valve
hahn blow off valve
Tim Larsen
Eagan mn
Text or pm 612 two five zero 0844
Selling Hahn bov, never been installed on my car but slight use. A couple minor scratches but nbd. Retails for 229+shipping through Hahn. I'm selling for 150

Eagan mn
Text or pm 612 two five zero 0844
Selling Hahn bov, never been installed on my car but slight use. A couple minor scratches but nbd. Retails for 229+shipping through Hahn. I'm selling for 150

I'm assuming something like this. It's adjustable so you would either get a high pitch or loud whoosh
Saturn Sky 2.4 w/ Hahn turbo kit. - YouTube
Saturn Sky 2.4 w/ Hahn turbo kit. - YouTube
That Sky I think is running a HKS BOV, which are known for that squeaky type noise.
The Hahn BOV is just a re-badged Turbosmart Vee Port BOV, I actually was a little disappointed about that when I received mine because they advertise it like it's something they make. And when I asked Hahn personally about a link to a video so that I can hear what it sounds like, before purchasing one he said he didn't know of any online. However, he could of just told me it was a Vee Port since there are dozens of Vee Port videos online.
When I got it, it even came in a Turbosmart box with turbosmart manual calling it a vee port, the only difference is that it has Hahn's name on the top of it as you can see in your pictures.
All that said, it's an excellent BOV and I still run it on my car, it's top quality for sure and worth the price. Hahn's prices for the BOV are actually inline and sometimes even cheaper than what the regular Turbosmart Vee Port sells for, so that was another reason I never made a big deal about being sold a re-badged BOV.
It is adjustable like most BOVs but the adjustments don't effect the sound at all (except that you can introduce fluttering if you like), it's there so that you can adjust for how quick the BOV reacts to pressure change. If it's set too soft it opens too easily, and if it's set too hard you might get some flutter. BOVs are adjustable because people run different amounts of boosts, you have to fine tune it for your specific setup, the nice thing about this BOV is that it's super easy to adjust you just spin the top left or right.
I'm not trying to mess with your sale, I'm just trying to clear up any confusion.
And for the sound it does make a very nice WOOOSH or PSSHEW (haha) type sound, not a squeaky noise. Just youtube Turbosmart Vee Port, and you'll be able to find some clips.
Last edited by Sols; Jan 20, 2013 at 10:28 PM.
No its alright man. I'm glad someone can clarify because as I said, I've never ran it on my car. I don't know too much about bov's myself. I'm just now getting into the turbo scene because the m62 pissed me off
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