i have a COMPLETELY stock 2005 wrx and i want to put a blow off valve on it because i love how it sounds. would i had any problems with it since the car is stock and if not which brand and type of BOV would you guys suggest?

 

If anything, I'd probably be the only one would put something in here. BOV's are not good for WRX's or STi's, unless you're boosting 20+ psi. Otherwise, you'll run lean, or even may lose some power as some people had already mentioned around here. As of suggestions are concerned, BOV's are not recommendable.

Read around a bit more in here, it's been covered so many times that you won't have hard time finding a thread about it. But it's totally up to you, I can't suggestion any brand because no matter what it is, it's the same result for the most part.

 

If you get a 100% recirculating BOV, then it'll run just like stock. But it'll sound just like stock too so you will have spent money for nothing. If you really need to get that wet phart sound, get at least a 50/50 atmoshpereic/recirculating BOV so it's not a complete dump of the air charge.

 

I thought you ran rich with a bov? or does it go both ways?

 

^^

Uh oh... yea, you're right, I got it all mixed up! I thought I'd be the only one responding in here, since it's been beaten to death. Thanks for correcting!

 

dodiox please don't cross post.

 

i think i-club needs to ban people who dont search. theres this question every single time i come in this forum

 

Everybody was new at some point. Have a little patience- or at least just ignore the threads you don't want to help with.

 

I have a stock WRX and use a Go Fast Bits Hybrid 50/50 valve and it works great. It isn't too loud though.

 

i got the blitz dd. sounds good. like a bus whoosss. i get alot looks when it goes off. and its loud enough pretty much whenever you shift