OK, I've read a lot of anecdotal evidence on here that suggests that

a) the stock BOV leaks
b) the hoses are loose causing a leak
c) it's plastic so it must be bad
d) all of the above

What's the real story with the stock Evo VIII BOV? Is it really THAT bad?

 

Mine holds 20 psi fine. I just tightened all the clamps which were very loose. All the IC pipe clamps were loose also. Holds solid now. I didn't want to deal with adjustment issues that aftermarket BOVs have and don't care about the sound either.

 

There was some guy on here who did some pressure tests and proved *his* stock BOV leaked. Try doing a search. It's on here somewhere.

I would attribute the leak due to the BOV's construction. Perhaps plastic BOVs are constructed w/ looser tolerances and surface flatnesses, therefore don't seal as well.

 

the guys at mitsu even said it was crap...its a peaice of plastic on another piece...guess thats what they give when money is tight

 

Mine holds 20psi just fine.

 

I have ran mine up to 27psi. It also holds 23 psi like a champ.

 

Not on the stock turbo I hope...

 

 

The dealership just installed another one ony my car b/c the first one leaked....... ill keep getting it replaced until i decide to buy a new one

 

mine leaks. replaced it with turboxs rfl..now i am annoyed at the sound

 

Was that under warantee? What does a dealer charge for an OEM one?

 

100% covered under warranty ... the part is about 113 i belive and labor is 39 bucks ... ill be upgrading to an aftermarket BOV if this one fails as well

 

Stock turbo. Race gas.