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BOV question

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Old Jul 26, 2013, 11:30 PM
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BOV question

what is the best bov to replace my stock one and what mod i have to do. thanks
Old Jul 26, 2013, 11:32 PM
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Don't know which Evo you have, but the Evo 9 diverter valve is best if you have not converted to speed density.
Old Jul 26, 2013, 11:36 PM
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depends if you have an 8 or 9. if an 8, get a stock 9 BOV and you are set until above 25 psi. if you have a 9,just keep it until you run over 25 psi. dont be a ricer please.
Old Jul 27, 2013, 07:46 AM
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Yeah, after doing research on this forum, I purchased a stock Evo IX BOV to replace the aftermarket one that's on there.. Was cool at first, being my first turbo car and all, but the noise gets annoying after awhile IMO.
Old Jul 27, 2013, 07:50 AM
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depends on the turbo, I have the Kinugawa and it flutters because of the extra air, so im looking to replace mine.

On my stock 9 turbo the psssh sound was loud and got alot of attention
Old Jul 27, 2013, 07:14 PM
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Stock Evo 9 bov best in my opinion
The noise does get annoying after a while if you use your car as a DD
Old Jul 28, 2013, 03:56 AM
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like i said in lastpost. get the 9 if you have an 8. i have bolt ons and my 9 bov holds peak 26 tapering to 21 fine.
Old Jul 30, 2013, 09:16 PM
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I'm actually running a stock evo x bov on my evo 8 and it works great!!
Old Jul 31, 2013, 04:55 AM
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IX and X bov are pretty similar. If you're looking for something more than that, get the Synapse DV or try to find the APS twin vent.
Old Jul 31, 2013, 11:38 AM
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Synapse DV has been good to me.
Old Jul 31, 2013, 12:50 PM
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thsnks guys for your help. i will looking for one today.
Old Jul 31, 2013, 01:21 PM
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Also the Tial QR is being recommended a lot. One of the 3 below for sure.

Stock 9
Synapse
Tial QR
Old Jul 31, 2013, 01:30 PM
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^I had the QR also. I would recommend running the low spring pressure for MAF setups, 6-8 psi worked best.
Old Jul 31, 2013, 01:33 PM
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you should get the hks ssqv bc its loud and sounds cool
Old Jul 31, 2013, 05:07 PM
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Originally Posted by emagdnim8
you should get the hks ssqv bc its loud and sounds cool

The previous owner of my VIII had this BOV on the car, god is it loud. So I gave it to my buddy who drives a genesis 2.0T


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