I am looking to replace my forge bov, it flutters, and bucks like a bronco. The general opinion seems to be evo 9 bov, or the APS twin vent, is that correct? I am leaning towards the twin vent right now. Any opinions to sway me either way?

 

stock metal 9 bov FTW

 

No, that is not correct - the APS is not better than Forge. It's primary purpose is to make noise.

Which Forge do you have? The Forge RS is one of the best on the market for cars running over 25psi. If running 25 or less, then do the jdm mr dv/ix dv.

 

I've used the stock IX bov while stock, but once tuned and running more boost I switched to the upgraded IX bov from WORKS. Even then, I was experiencing partial boost fluttering, and went to the APS twin vent in order to minimize that problem --- which has worked out great. At partial pressure, the bov recirculates, and when you're running 26+ psi, it vents to atmosphere instead.

My vote, APS twin vent.

 

APS twin vent has been great...here's my full review

https://www.evolutionm.net/forums/sh...d.php?t=308210

 

Huh? That would not be a good thing - that's a bad thing.

 

in theory, not reality

 

Tial FTW

 

30 psi on stock ix diverter not an issue

 

I agree with Mellon. APS is my vote. Has good drivability, and one would expect issues with venting, but I have not experienced that. I have considered switching to the stock 9 metal DV, but why?

 

Well this seems to still be a hot button topic, I am going to go ahead and get the aps. My forge recirculating non adjustable unit flutters, and I run 24psi daily, and 28psi on 100 octane occasionally.

 

^^yep that's the model forge I had massive problems with The APS twin vent was my savior and I have since regained some of my sanity

 

APS here and working like a champ; have heard a few issues from people running the Forge.

 

My APS flutters less than the 9 bov I was running. Works great.

 

Samco Sport valve that I got from AMS solved all my fluttering problems for less than 200 dollars. Looks great too. Look it up, I really think it works great.