[wafflesmartano]

I'm thinking about installing an aftermarket Blow off Valve (BOV) to my 07 335I, and I need help as to which manufactures I should consider. What I'm looking for is nothing too obnoxious in noise, but still be able as well as others to hear the BOV. I think Burger tuning may have what I'm looking for, but I don't know what it sounds like. I was wondering what type of input you all may have. Below is the link to the BOV I'm interested in.

http://burgertuning.com/BOV_Kit_135_335_BMW.html

Thanks in advance for your help!

[Spun Crankhub]

I have the hks bov that came with my ETS charge pipe and it is a bit loud.

[wafflesmartano]

I've been listening to a few youtube videos with an HKS bov, and you are right. It is a bit loud.

[fdawg4l]

Please pardon the noob question, but other than sound, is there mechanical benefit to a BOV? I read something somewhere about helping impeller life, but then I read something about the diverter and low boost pressures (without a tune) making this a moot point.

Any help or links would be greatly appreciated.

[m1ka]

Active Autowerke w/ chargepipe.

Get company & customer support, quality product, and most likely the sound you are looking for.

Price can be a bit steep however if you buy used on the forums you can pick one up for around $400. Just make SURE the seller includes all the hardware (reducer, clamps, bolts, end caps, vacuum line, etc) bc those can add another $30-50 depending.

Install is simple and straight forward just do your research especially with the vacuum line connection.

Also, this piece can not pair with an Injen intake bc of fitment issues.

[wafflesmartano]

Thanks m1ka. I haven't considered looking at used parts on here. The part that I was looking at from Burger tuning is pretty steep to. Brand new plus the cost of shipping comes out to ~$600!!!!

@ fdawg4l Take a look at this video on youtube that I've found. It explains BOVs on a general level.

[mrbillytalent]

I'm getting a blow off valve for my bike.