Is it worth putting a blow off valve on an s4 performance wise or should I keep it without? I like the blow off sound but I heard it wasn't worth it?

Any input helps

 

no. just stick w/ dv's. you need a tune to run them as well. cannot be just plugged in like diverter valves. what are you running now? if youre running anything below a tial 605 build you will be just fine on 710n's.

 

I have a set of brand new black aluminum DVs for sale $120 for both shipped.
Let me know

 

brand? they look like forge 007 knock-offs....

 

Thats what they are, Fonzo. I just got a set of em last week and finally got to put em on yesterday. Definitely worth the money. Although I have the chrome ones, these still look fantastic in the car.

 

Not knock offs but replicas. And correct these are 007 reps with interchangeable springs and fully serviceable.

 

sticky ftw

 

bov's are for bitches. just wanting a calling, or a following. either or. it means nothing but how your car does away with intake pressures. its NOT A BIG DEAL AT ALL. ... if you think it is.. then go get a subie. and leave us alone.

 

do the tops swivel where the vac line attaches?

WARNING:
Birgern is gonna stab the next person that brings up bov's.

 

Not really sure what you mean by tops swivel?
Line goes on the tip of the base and then clamps down for secure fit. To service them you simply unscrew the top off to replace springs or regrease them.