any one running forge bov wonder what upper pipe you are using or how you got the forge to fit?

 

the forge one for the 8/9 are almost exactly the same as the stock besides of course the internal upgrades and such. No need for extra flanges or anything, direct bolt on you could say.

 

Have a friend who ran one and he hated it. After he ran the BPV he started having surge issues and the valve would not hold any boost at all. He replaced it rather quickly.

 

^^My brother has one as well and it leaks bad. It will not hold boost even with there biggest spring. Good thing he got it for free

 

Please note that they are 2 types of FORGE BOVs . The forge RS is the one to get

 

lol... maybe that's the problem

 

That is what my friend got and it still had problems. Haha he said he would never get another forge product ever.

 

for an evo 9 there shouldnt be a need to change out the stock DV. unless yours is damaged or if you are pushing high boost all the time.

 

Not sure which one it is

Im sure buying it new would have the same out come, It came off of my friends Evo working the same way when he had it.

 

I have the Forge RS unit on my car and love it. The downside with having the stock ix metal bov is that it flutters down low in vacuum because of its STIFF spring. Yes the IX bov is perfect at holding boost , but to me I wanted a bov that wouldn't flutter down low when I was taking off from a light with a lil more throttle than usual. The RS was givin to me from a friend to try to see if my flutter went away , and sure enough it did. The RS bov has an adjustable spring , I'm currently running 14 clicks from full soft setting and loving it. The only sign of flutter I get is if I hold the throttle down for a tad bit @ 10psi then let off slowly then it will flutter , but if I duplicate the same situation and let off the gas fast then it won't do it.. Other than that it's a nice piece , and I'm able to live with letting off the gas fast if I'm in boost.

 

I love my Forge RS