hello ive gotta 04sti runing 320+ bhp and just wondering if i would benifit from a uprated recirclating dump valve? thanks

 

I'd only bother with Forge's ones that are the same pattern as OEM. I believe they have a stronger diaphragm - or even a metal spring - not sure

Saying that, your car's one is metal isn't it? So I personally wouldn't bother - they're robust and rarely fail.

I have Forge's OEM all-metal replacement in my 1993 WRX - the OEM ones are plastic up to MY98! - so a worthwhile swap in my case, IMHO.