Sooo if i change to a bov will it need tuning? will it effect any performance? and where can i get the block off plate for bypass valve and the charge pipe with the bov fitting most likely will get hks

 

Treadstone makes the best block off plate. There are a number of vendors that make charge pipes with a BOV flange. Just make sure you get one that will work with the HKS Valve. I believe the Dejon works with it.

You are going to need tuning and you're also going to need to relocate your MAF sensor to the lower charge pipe.

Personally, I don't think you should do it. These cars don't like aftermarket BOV's

If you're just looking for the sound, buy a K&N intake instead. It will sound exactly the same as an aftermarket BOV and work much better.

 

We've installed them on cars without a relocate and it works OK, def better with it relocated tho!