akash said:
Guys just a little out of topic..... But is it true that Blow Off Valves could cause a drop in power or is that just a myth?
i am interpreting your question in 2 ways,
1. If they are bypassing boost when they supposed to be shut that can lead to massive amounts of boost loss resulting in power loss and the normal 30ff codes
2. if you talking about them venting to air when they "release" instead of back into the intake system causing loss of power then that is indeed a myth...