IAG -ENG-7251 Installation Manual

IAG Competition Series Air / Oil Separator (AOS) For 2017 STI
Part# IAG-ENG-7251
Tools Required: Ratchet, torque wrench, extensions,
needle nose pliers, hose cutter, snips/scissors, flat head
screw driver, hose clamping pliers
Sockets: 10mm, 12mm, ¼" allen,
Wrenches: ⅞", 8mm, 10mm, 19mm 3mm allen, 5mm allen,
pry bar,
Other: Electrical Tape
Congratulations on the purchase of your Air/Oil Separator
(AOS) and thank you for choosing IAG Performance. This
installation manual is intended to guide you through the
removal of the factory PCV system and the installation of
the IAG AOS. If you already have an aftermarket catch can
or AOS installed, please consult the specific instructions for
your hardware to aid in its removal.
Note: The 2015+ STI cars are equipped with a "noise
symposer" engine sound enhancing device that connects
the intake to the firewall. These instructions do not cover
the removal process of this device. Usually this device is
already bypassed by the time an AOS is required.
Parts List
Part Name
Air/Oil Separator
Oil Drain Hose Assembly
Top Coolant Hose Assembly
Bottom Coolant Hose Assembly
Discharge Hose
Block Breather Hose
Valve Cover Breather Hose
Block Drain Replacement Hose
Mounting Bracket
90° 5/8" Plastic Fitting
PCV Replacement Fitting
Comp Series Upper Breather Fitting
Fasteners for Breather Top Fitting
AOS Drain Fitting
Spring Clamps
6x10mm Bolt
½" High Temp Rubber Cap
5
/ " High Temp Rubber Cap
8
P P R R
8" Zip Tie
11" Zip Tie
IAG Performance | 1203 Baltimore Blvd. Westminster, MD 21157 | Ph: 410-840-3555 | www.iagperformance.com
Quantity Notes
1
1 26" Hose Length
1 20" Hose Length, ½" I.D., -8ORB
1 20" Hose Length, ½" I.D., -8ORB
1 58" Hose Length, 1" ID
1 25" Hose Length,
1 74" Hose Length, ½" ID
1 2" Hose Length, ¾" I.D.
1
1 Block Breather Fitting
1 "Y" Fitting
1 Preinstalled
2 M4x8mm / preinstalled
1 Preinstalled
2 Coolant Hose Spring Clamps
3 Mounting Bracket Hardware
1
1
16
1
5
/ " ID
8
P P R R
1