The best "type S" knock off is easily the NRG type S. It will sound the same and uses much better internal construction and seals.

But...it's loud as ****. I mean retarded loud. It was so loud that I could easily hear it over Buffon's 3" straight pipe at full throttle. But then again, I do love obnoxiously loud bov's, so it didn't bother me one bit.

Just a fair warning for those looking for a Type S without all the original Type S issues and leaks.

 

does the real type-s have issues? ive had mine running since 2006.

 

Historically they leak under high boost pressures. Mine was pretty flaky over 20psi.

 

what about this little guy?

Blitz Style BOV Flange

I like that it has the little filter thingie, I bet it quiets it down a bit

 

but then I like this too

 

Does it use a rubber diaphram?

 

they're both knockoffs. of course they do. there are very few bov's out there these days using piston style setup. all of them are well over my $100 limit

 

Yeah thats the main reason why i like my forge :/