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Greddy Type-S BOV w/ Recirculation Kit?

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2.6K views 2 replies 3 participants last post by  rankpete  
#1 ·
Hi everyone, just need some opinions on Greddy Type-S BOV w/ Recirculation Kit or any BOV for the STI, does anyone have this on their car? if so, does or did it hurt performance? I know mainly it is for the sound/show :) just need some opinions before i possibly buy a 2 week old one from someone...
thanks
J
 
#2 ·
The re-circulating valve wont hurt your performance, its the atmospheric ones that throw off the ECU. You really wont be able to hear much of a difference over stock with it re-circulating. It may get a little bit louder but thats about it. Kind of a waist of money. I have a brand new kit sitting here, never used it once, Im going to save it till I swap a EJ20 in my RS, and upgrade the turbo, thats when it will actually make a difference.
 
#3 ·
I have the APS BOV. It recirculates at low boost but under full boost its atmospheric. Its a nice sound INMO. It souns like a really big air gun goin off but better. If your looking for just noise all the time, then the HKS Super Sequential or the RFL are atmospheric and VERY loud.


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