I had the TurboSmart BOV in my car for the past 2 years and had nothing but problems with it. It had to be oiled, leaking, and anything over 15psi it would come right off as the little set screws could not hold it. Then I purchased the Greddy R BOV and it works awsome, it is little on the big side but if you take your time you can make it fit. It has a 2 inch outlet and uses the type S flange. It is recomended for bigger turbos. I have done many boost leak tests and when properly adjusted does not leak at 25psi.
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