i have a greddy RS with hahn block off plate. just put the block off plate on, put the spring and black piece behind the block off plate like it was. all the block off plate replaces is the tan piece with the vacuum nipple on it. then take the line that was on the BPV and run it into the HKS. That gives vacuum to the HKS to suck it open when you let off the gas. if your surging, you may not have enough vacuum, in which case you T into your intake manifold vacuum source as well. so you have vacuum from the solenoid, and the intake manifold. that should solve any problems.

and if anyone is getting sick of their BOV, chick out my classified thread, i wanna trade charge pipe sections with some1 with a different BOV as mine to just keep it fresh

 

picking up my flange today, gunna order the block off plate. going to ship off to CIA for welding. and get an HKS. walla im done. woo

 

Wait wait, so the block off plates people sell retain the stock spring and plunger setup?

I wonder if people have all these weird issues because that plunger is being forced open during high boost situations. Without boost on the vacuum nipple pushing against the plunger I'd think it would make it even slightly weaker.

 

Its definitely possible, a simple fix would be to put a thin piece of aluminum/steel under the plate to put more pressure on the diaphragm.

 

i like the way this one sounds, but that might get annoying
http://www.youtube.com/watch?v=SjTeEAyY1mo&NR=1

i just posted in here so i can follow along

 

They are ALL annoying ALL the time...stock and quiet FTW

 

thats ur opnion man.

and with HKS you can change the fin out for different sounds.

my stock intake box is way to quiet.

 

still no bite on anyone running a Synapse Engineering BOV

 

hks bov here. No problems. been running it for over a year. just gotta know what you're doing