Blk003GT

needing to upgrade my bypass. how much louder is the vortech mini race and the stock plastic bypass?

Harryman2002

Not sure about the mini race valve but ive got the procharger big red blow off valve and its crazy awesome.
Maybe try searching for some vids on youtube?

MU71L4710N

yes but a bov isnt the same as a bpv and they wont ever sound the same. the "whoosh" you get from a bov is because your hearing air vented to the atmosphere, not recirculated back through some rubber hoses.

uberstang1

How many pounds of boost are you running? I was under the impression that the bigger procharger valves were for blowers making 14psi and higher.

Blk003GT

Running around 14 15 lbs and I get really bad fluttering right now. The stock bypass cant flow enough air

Eduardo

I have the mini bypass vented to atmosphere running 10lbs of boost and its not that loud, definitely audible but nothing like the procharger big red valve

rman101

hmm ide want to look into this as well any videos on how it sounds?

Harryman2002

Like 10 or so. Its worked great for me. I think they're mostly meant for higher PSI but no problems for me.

Mustang_NTriangle

Interesting, I am running 15 PSI and just have the rubber hoses to plastic valve. I get a alot of flutter when coming down from high rpms.

Is this a bad thing, should I look into this as well and does it require a retune? Will it replace some of the rubber hoses???

oxfordgt

Yes it is a very bad thing. That fluttering is boost backing up into your supercharger. It can destroy your supercharger. I would replace it as fast as you can. No you won't need a retune.