S2 Industries Black Series Oil/Air Separator
Registered User
iTrader: (12)
Joined: Apr 2008
Posts: 7,225
From: SF Bay Area - Peninsula
Car Info: 04 psm wrx sedan
noob questions here
1. does this affect smog/visual if modding oem pcv system?
2. this replaces the oem oil filler cap correct? and it looks like you need a socket to be able to open and fill oil up?
1. does this affect smog/visual if modding oem pcv system?
2. this replaces the oem oil filler cap correct? and it looks like you need a socket to be able to open and fill oil up?
Thread Starter
Former Sponsor
iTrader: (39)
Joined: Nov 2002
Posts: 6,453
From: San Jose
Car Info: Evo X, 04 STI, 335i, Fit
Yes it does replace the OEM oil filler cap and uses a 19mm socket to open the AOS.
-Ryan
Registered User
iTrader: (11)
Joined: Jan 2008
Posts: 6,849
From: Cheesesteakville
Car Info: 05 wrx wagon, 90 celica alltrac, 66 mustang
what is an oil/air separator (besides the fact that is separates oil and air) and why do should I not pass up a deal on one




