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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Powertrain and Drivetrain Discussions > N54 Turbo Engine / Drivetrain / Exhaust Modifications - 335i > Blow off valves



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      07-18-2008, 05:51 PM   #1
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Blow off valves

are they really worth it... i have been researching and you find both sides.. jut need the skinny here... thanks....
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      07-18-2008, 07:32 PM   #2
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      07-18-2008, 07:36 PM   #3
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I prefer the sound of BoV, and unlike Audi turbos you don't actually "need" these DV's for MAFs/tuning. Some will say the BoV is ricer... I mean if you want a quiet luxury car then I wouldn't recommend the BoV's.
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      07-18-2008, 09:20 PM   #4
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Forge DV's are worth it ...
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      07-18-2008, 09:28 PM   #5
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Dual cone intake gives a great blow off sound without swapping out the DV's
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      07-18-2008, 09:31 PM   #6
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Didn't swap the DV's for sound, I did it for better holding the boost.
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      07-20-2008, 12:15 AM   #7
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Forge DV's are worth it ...
+1 Great mod. When you pull off the stock DV's you'll see why.
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      07-20-2008, 12:32 PM   #8
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I was at a big meet yesterday and people were reving the piss out of their engine showing off their BOVs.

It sounded so BAD!
rev-pshhh--revrev-pshpsh.

I know that people are going to do whatever they like, but IMO, it's embarassing.
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      07-20-2008, 03:59 PM   #9
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      07-20-2008, 04:00 PM   #10
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      07-20-2008, 04:08 PM   #11
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Quote:
Originally Posted by Mr. 5 View Post
I was at a big meet yesterday and people were reving the piss out of their engine showing off their BOVs.

It sounded so BAD!
rev-pshhh--revrev-pshpsh.

I know that people are going to do whatever they like, but IMO, it's embarassing.
Quite agree.... does not suit a car like the 335 either

More suited for a wrx or srt4
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      07-20-2008, 04:09 PM   #12
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Quote:
Originally Posted by Mr. 5 View Post
I was at a big meet yesterday and people were reving the piss out of their engine showing off their BOVs.

It sounded so BAD!
rev-pshhh--revrev-pshpsh.

I know that people are going to do whatever they like, but IMO, it's embarassing.
Depends what you like. I guess a lot of it depends on age too. What do you find embarrassing about it? Just a little extra woosh on shift?

Quote:
Originally Posted by Railgun View Post
You gotta get the right BOV. I used to have the HSK SSQV which is probably one of the most obnoxious valves. I just replaced it with the Synapse Syncronic BOV. Absolutely love it. Just a nice whoosh. No whistle to speak of.
+1 -- I love mine too. I never feel embarrassed ever when mine blows off. People always ask about it, maybe it's a little different over here.
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      07-20-2008, 04:18 PM   #13
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i love my bov. if you like the sound get it if not then dont
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      07-20-2008, 08:03 PM   #14
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Quote:
Originally Posted by Railgun View Post
You gotta get the right BOV. I used to have the HKS SSQV which is probably one of the most obnoxious valves. I just replaced it with the Synapse Syncronic BOV. Absolutely love it. Just a nice whoosh. No whistle to speak of.

+1
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      07-20-2008, 09:35 PM   #15
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i have the active autowerke BOV and its great
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      07-21-2008, 01:54 PM   #16
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i have a aa bov also. but never installed it im waitin for the right weather lol its tooo hot out!
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      07-21-2008, 04:52 PM   #17
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i have the active autowerke BOV and its great
+1 Love mine.
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      07-21-2008, 10:25 PM   #18
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