I have both a Greddy Type S BOV (can be seen on this website about half way down... http://www.mkiv.com/techarticles/bov/) and an HKS 'racing' BOV but I am not sure of it's exact model (that BOV can be seen at http://www.isuzuperformance.com/bills/engturboicp.html).
Does anyone have experience with both of these BOV's? Which one is "better"?
Best,
John

 

I'm new to the board, but I am looking to get a BOV too. I want a loud, one. I don't want to be rice, I just think they sound soooo cool.
Allen

 

and it is pretty damn loud, and it has even startled people who happen to be walking by.