when will i need to upgrade to a BOV.about to install HKS arbon ti/RNR TBE,MBC,Walbro fuel pump 255,and a flash.run about 21-22 PSI

 

next time please search, there are quite a few threads regarding about aftermarket BOV's. trust me, you got one of the best functioning DV's which holds plenty of boost. there is no need to upgrade unless your gonna run an upgraded turbo and stand alone ecu with speed density.

 

Bov waste of money.

 

not until you are running crazy high boost or with a bigger turbo

no ricer bov for you just yet haha

 

I have to agree the IX or the VIII JDM MR stock BOV is a great unit and if you do switch to the HKS you have a lot of problems as many people have posted whom have tried to use it. If you do a search under BOV's you will see what we mean.
I upgraded my stock VIII plastic BOV to the one you have and it hold perfectly with no surging or any problems. I have seen other Evo's holding 30psi on crushed ones.

 

Stock DV will hold around 26psi from what I've read on this board.

I'm 4 psi over so I need a new dv. Forge RS full recirc for me.

 

i did but thats because i had the crappy 8 BOV ..

 

You have the Evo 9 BOV.....keep that.

 

the stock IX is a great dv.....unless your running meth or race gas w/ 28+ psi you you wont need to upgrade

 

He didnt say he was upgrading to the HKS bov lol, but yea id have to agree with you tho the MR dv is the best.

 

keep the stocker or you will regret it for sure!

 

^ What he said, but the MR Stock one would be great for ya.

 

thanx for the info guys, i never said i was changing it.just wanted to know how much boost it would hold until i needed to change it.i did search before but and saw that a lor of people have problems with aftermarket BOV's,but didn't see anything on how much the stock DV could take .buying a BOV just for the cool woosh sound =ricer lol

 

the stocker should hold 26 psi with no problem. If you plan on going much higher with alky or similiar and still want to keep the stock like driveability you can get the dejon fix for your stock IX bov which will hold anything (boost) you can throw at it. (so i,m told) Do a search and you will find every answer you need about bov,s.