It isnt that tial or hks bovs are bad valves, but alot of people are buying knock off hks parts and tial parts these days and not even knowing it. I would say a good percentage of the tial wastegates, bov's, hks bov's, and aem wideband gauges are fake from ebay. So be careful who you purchase these said items from. This is coming from two friends who have both had customers cars come into their shop with ebay purchased parts, which were faulty and verified by calling the companies direct.
I do agree with Johnny wangwang though, you can have the best bov on the market but if you dont know how to adjust it or hook it up correctly it isnt gonna work so well.
I do agree with Johnny wangwang though, you can have the best bov on the market but if you dont know how to adjust it or hook it up correctly it isnt gonna work so well.