Hey guys I wanna put diff blow off valves on my gtr. Can I use anykind or a recirculating one witch looks like is on ther already.

recomend a good brand at least. Synapsis are probably the best. GFB are very popular on the GT-R here. some tuners like the HKS one's too, but i have heard of alot of failures from these, but then again they are probably one of many really popular highly sold brands.

you can use most of them but make sure they work for gtrs and check the flange tho. The stock flange are diamond shaped while a lot of bovs like hks, greddy and blitz require round flanges. I got the gfb bov which uses the stock flange.

If I do a intake u think I'll hear the blow offs alil louder?

HKS are annoying IMO lol...

Hks is great when you take that damn fin out of it. (Except on a Evo.) But that wont help cause the bov doesn't make noise then.

i have the AAM intake and can even hear the factory bovs.

why's that Tooo loud