alright I've been reading a lot lately about bov's and I've mainly been reading two different things.

1)it doesn't do any harm to the engine at all.no blow off valve does.it doesn't cause surging,stalling,lean/rich problems,idle problems nothing.

and

2)it causes major damage to the engine.especially the full atmospheric blow off valves.I remember reading somewhere that it messes with your turbo to and your going to have to rebuild it after 15k miles.I've also read that it can mess with your idle and cause stalling.

now which is true?I used to believe #2 that's why I've never thought about installing one.but now that I've been reading more I'm not so sure.