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PERRIN Air Oil Separator Red Stock TMIC (Part Number: )
PERRIN Air Oil Separator Red Stock TMIC (Part Number: )
PERRIN Air Oil Separator Red Stock TMIC (Part Number: )
PERRIN Air Oil Separator Red Stock TMIC (Part Number: )
PERRIN Air Oil Separator Red Stock TMIC (Part Number: )
PERRIN Air Oil Separator Red Stock TMIC (Part Number: )
Community Media
PERRIN Air Oil Separator Red Stock TMIC (Part Number: )
PERRIN Air Oil Separator Red Stock TMIC (Part Number: )
PERRIN Air Oil Separator Red Stock TMIC (Part Number: )
PERRIN Air Oil Separator Red Stock TMIC (Part Number: )
PERRIN Air Oil Separator Red Stock TMIC (Part Number: )
PERRIN Air Oil Separator Red Stock TMIC (Part Number: )
PERRIN Air Oil Separator Red Stock TMIC (Part Number: )
PERRIN Air Oil Separator Red Stock TMIC
Subaru WRX 2008-2014 / STI 2008+
Read 7 Reviews | 13 Q&As
Part # PSP-ENG-606RD
$445.50
msrp: $495.00

In stock! Ships same day

Features & Product Details

RallySport Direct is proud to provide you with a great selection of Air Oil Separators brought to you by PERRIN Performance.

On this page, you are looking at the PERRIN Performance Air Oil Separator designed to work with the stock top mount intercooler. 

Here are the details:

  • Traps oil from the crankcase ventilation before it enters the intake system
  • Reduces the chances of detonation 
  • Increases intercooler efficiency by reducing the amount of oil deposited into your intercooler and intake system
  • Reduces carbon buildup in the combustion chamber, intake valves, and intake tract
  • NOT a catch can system
  • Separates engine oil from water vapors and allows the oil to drain back into the engine
  • Oil entering from the crankcase vents spins counterclockwise through the entire body of the AOS that passes along 4 walls equalling 50.25 square inches of surface area
  • Multiple baffle walls in the compact design simulate the surface area of an AOS that is 13.5" tall
  • Comes provided with all necessary hoses and hose fittings
  • Can comes with a red powder-coated finish
  • All hardware, brackets, fittings, and clamps are included to make this AOS system ready for the installation
  • Specifications

    Brand: PERRIN
    Color: Red
    Installation Hardware Included: Yes
    Material: Aluminum
    Mfgr. Warranty: 5 Years
    Condition: New Product
    Return Policy:

    RallySport Guarantee - 30 Days


    Items that are covered under the RallySport Guarantee offer a 30 day no questions asked return policy.

    RallySport Guarantee items may be returned within 30 days of the original invoice date and must include all the original parts and contents for a refund.

    The RallySport Guarantee does not apply to products that have been modified, damaged, misused or abused. All returns require an RMA (Return Merchandise Authorization) Number, and freight charges are strictly non-refundable. For more information regarding our freight refund policy, please refer to our return policy page found HERE.
    RallySport Guarantee
    WARNING: This product contains chemicals known to the State of California to cause cancer and/or birth defects or other reproductive harm.

    PEOPLE WHO VIEWED THIS ITEM ALSO VIEWED

    REVIEWS & CUSTOMER MEDIA

    7 Reviews
    4 out of 5 Stars
    5 Stars
    (3)
    4 Stars
    (1)
    3 Stars
    (3)
    2 Stars
    (0)
    1 Stars
    (0)
    Customer Photos and Videos
    PERRIN Air Oil Separator Red Stock TMIC ( Part Number: PSP-ENG-606RD)
    PERRIN Air Oil Separator Red Stock TMIC ( Part Number: PSP-ENG-606RD)
    PERRIN Air Oil Separator Red Stock TMIC ( Part Number: PSP-ENG-606RD)
    PERRIN Air Oil Separator Red Stock TMIC ( Part Number: PSP-ENG-606RD)
    PERRIN Air Oil Separator Red Stock TMIC ( Part Number: PSP-ENG-606RD)
    PERRIN Air Oil Separator Red Stock TMIC ( Part Number: PSP-ENG-606RD)
    PERRIN Air Oil Separator Red Stock TMIC ( Part Number: PSP-ENG-606RD)
    2015 STi installed AOS with AN fittings 2 years ago
    D.Valdez
    very well made AOS fairly easy to install, ditched the plastic fittings and went with AN fittings and hoses but left the coolant and oil return lines alone
      
    Was this review helpful?
    Good AOS 3 years ago
    Saloonracer
    This is a very good AOS as far as quality goes. It is a very difficult install. I would not do this install again. You need to understand the cars PCV system very well and also the concept behind the AOS. I am worried about the lines being so close to alot of heat in the engine bay so Ill need to make some changes there. The bracket is not proper for the 2015 STI. Its too low and I doubt it would let the oil drain properly. You can flip the bracket but need to drill out the hole for an M8 bolt on the strut tower. Fitting the TMIC in with this setup is also very difficult after all the lines have been placed. Its a tight fit.
      
    Was this review helpful?
    installed on my 2015 sti 4 years ago
    Rob S
    Only trouble I had was the mounting bracket did not line up on strut tower. I had to drill out the bottom hole to get it to line up. Other than that it works great, just wish the instructions would come year specific. It would make them a lot easier to understand if you didn't have to read about every other model and year of the wrx and sti.
      
    Was this review helpful?
    This AOS is worth every penny and will by all means protect your intake.  4 years ago
    Luis Pelaez
    The PERRIN AOS for my STI FITS perfectly. However the installation is not to be taken for granted. Takes 3 hours to install and we did some modifications to the hosing lines. Everything you need is in the manual and make sure you understand it and know exactly what you are doing before you install this Part. It helps to have a professional help or work on it for you. But like I said it's worth the money and it gives you pease of mind to know that oil is not going in to your intake.
      
    Was this review helpful?
    2012 STI  4 years ago
    awangard.motors35013
    This is the best AOS out there - have a few customers running them and it performs for 100% if you looking for one , thats the best way to go. As for install - read instructions carefully !!
      
    Was this review helpful?

    QUESTIONS & ANSWERS

    • Q: Aos  Motrudboy9 months ago

      Can you order the bracket for the fmic? Would like to get this but for the fmic setup.
    • Q: PCV Valve  Kappzilla1 year ago

      Does this setup delete the PCV Valve or no?
      • 0 of 0 people found the following answer helpful

        A:  The instructions do not say to delete the PCV valve. You can choose to not use the PCV during install of the kit, but we wouldn’t recommend that.

        Perrin Performance @ PERRIN 1 year ago  
          
        Was this answer helpful?
    • Q: Stock ic vs aftermarket  12WRX2 years ago

      I was planning on getting the aos before i get an aftermarket fmic, but i was planning on getting the fmic within 6 months. Whats the difference between this kit and the one for the aftermarket FMIC?
      • 0 of 0 people found the following answer helpful

        A:  The only difference between the two would be the mounting bracket, aside from that everything will be the same.

        Brady R @ RallySport Direct 2 years ago  
          
        Was this answer helpful?
    • Q: Perrin AOS  Jordan2 years ago

      Will the AOS be able to be installed if I have a strut bar? Will it fit under the strut bar?

    This Part Fits

    Subaru Impreza
    WRX Hatchback
    2008 Subaru Impreza WRX Hatchback
    2009 Subaru Impreza WRX Hatchback
    2010 Subaru Impreza WRX Hatchback
    2011 Subaru Impreza WRX Hatchback
    2012 Subaru Impreza WRX Hatchback
    2013 Subaru Impreza WRX Hatchback
    2014 Subaru Impreza WRX Hatchback
    WRX Limited Hatchback
    2010 Subaru Impreza WRX Limited Hatchback
    2011 Subaru Impreza WRX Limited Hatchback
    2012 Subaru Impreza WRX Limited Hatchback
    2013 Subaru Impreza WRX Limited Hatchback
    2014 Subaru Impreza WRX Limited Hatchback
    WRX Limited Sedan
    2010 Subaru Impreza WRX Limited Sedan
    2011 Subaru Impreza WRX Limited Sedan
    2012 Subaru Impreza WRX Limited Sedan
    2013 Subaru Impreza WRX Limited Sedan
    2014 Subaru Impreza WRX Limited Sedan
    WRX Premium Hatchback
    2010 Subaru Impreza WRX Premium Hatchback
    2011 Subaru Impreza WRX Premium Hatchback
    2012 Subaru Impreza WRX Premium Hatchback
    2013 Subaru Impreza WRX Premium Hatchback
    2014 Subaru Impreza WRX Premium Hatchback
    WRX Premium Sedan
    2010 Subaru Impreza WRX Premium Sedan
    2011 Subaru Impreza WRX Premium Sedan
    2012 Subaru Impreza WRX Premium Sedan
    2013 Subaru Impreza WRX Premium Sedan
    2014 Subaru Impreza WRX Premium Sedan
    WRX STI Hatchback
    2008 Subaru Impreza WRX STI Hatchback
    2009 Subaru Impreza WRX STI Hatchback
    2010 Subaru Impreza WRX STI Hatchback
    2011 Subaru Impreza WRX STI Hatchback
    2012 Subaru Impreza WRX STI Hatchback
    2013 Subaru Impreza WRX STI Hatchback
    2014 Subaru Impreza WRX STI Hatchback
    WRX STI Limited Hatchback
    2011 Subaru Impreza WRX STI Limited Hatchback
    2012 Subaru Impreza WRX STI Limited Hatchback
    2013 Subaru Impreza WRX STI Limited Hatchback
    2014 Subaru Impreza WRX STI Limited Hatchback
    WRX STI Limited Sedan
    2011 Subaru Impreza WRX STI Limited Sedan
    2012 Subaru Impreza WRX STI Limited Sedan
    2013 Subaru Impreza WRX STI Limited Sedan
    2014 Subaru Impreza WRX STI Limited Sedan
    WRX STI Sedan
    2011 Subaru Impreza WRX STI Sedan
    2012 Subaru Impreza WRX STI Sedan
    2013 Subaru Impreza WRX STI Sedan
    2014 Subaru Impreza WRX STI Sedan
    WRX STI Special Edition Hatchback
    2010 Subaru Impreza WRX STI Special Edition Hatchback
    WRX Sedan
    2008 Subaru Impreza WRX Sedan
    2009 Subaru Impreza WRX Sedan
    2010 Subaru Impreza WRX Sedan
    2011 Subaru Impreza WRX Sedan
    2012 Subaru Impreza WRX Sedan
    2013 Subaru Impreza WRX Sedan
    2014 Subaru Impreza WRX Sedan