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PARTS INCLUDED

INSTALL TIME 2 HOURSINSTALL DIFFICULTY

DISCLAIMER• Raise vehicle only on jack stands or on a vehicle lift.

• Allow vehicle to cool completely prior to attempting installation.

• Do not run the engine or drive the vehicle while overheating; serious damage can occur.

• Please dispose of any liquids properly.

• Mishimoto is not responsible for any vehicle damage or personal injury due to installation errors, misuse, or removal of Mishimoto products.

• Mishimoto suggests that a trained professional install all Mishimoto products.

CAUTION Never work on the cooling system when it is hot. The coolant temperature in the radiator can be considerably higher than boiling, and the system may be under pressure. Opening a cooling system that is hot or under pressure can result in serious injury. Always wait until the system has cooled completely before servicing it in any way.

NOTEIt is recommended that you check and drain the contents of the catch cans every 1000 miles until a baseline for oil accumulation is established. This will be different for every car and will change based on ambient temperatures and driving conditions.

INSTALL PROCEDURE01. Prep the catch cans. Install the fi ttings into each catch can,

and tighten them with a 17mm wrench. The threads on these

fi ttings are tapered and may not be completely fl ush with the

can when fully installed.

02. Locate the L-shaped bracket. Remove the battery lockdown

nut closest to the washer reservoir, and install the L-shaped

bracket so that the catch can mount is on the side closest to the

oil fi ll. Then install the original lockdown nut. (1x 10mm nut)

03. Install a catch can onto this bracket so that both ports face

toward the passenger side. (2x 2.5mm bolts)

04. Remove the trim panel that runs along the passenger side

of the engine bay, next to the fender. (2x pop-clips)

CONTINUED ON FOLLOWING PAGE

2015+ SUBARU WRX BAFFLED CATCH CAN SYSTEM PARTS LIST AND INSTALLATION GUIDE

2PC | APPLICATION-SPECIFIC MOUNTING BRACKETS

2PC | BLACK, ANODIZED 6061 ALUMINUM CATCH CANS

4PC | SILICONE HOSES

4PC | PLASTIC BARBED FITTINGS

8PC | APPLICATION-SPECIFIC MOUNTING BRACKETS

4PC | BRONZE FILTERS

4PC | AIR DIVERTERS

4PC | INTERNAL BAFFLES & RODS

4PC | 3/8" NPT PLUGS

4PC | LARGE O-RINGS

MOUNTING HARDWARE

2.5MM ALLEN KEY

10MM DEEP SOCKET

1/4" DRIVE RATCHET

1/4" DRIVE 3" EXTENSION

10MM RATCHETING WRENCH

12MM DEEP SOCKET

14MM SOCKET OR WRENCH

3/8" DRIVE RATCHET

3/8" DRIVE 6" EXTENSION

FLATHEAD SCREWDRIVER

NEEDLENOSE PLIERS

SIDE-CUTTING PLIERS

TOOLS NEEDED

MISHIMOTO | 18 BOULDEN CIRCLE, NEW CASTLE, DE 19720 | P 877.466.4744 | WWW.MISHIMOTO.COM

MISHIMOTO | 18 BOULDEN CIRCLE, NEW CASTLE, DE 19720 | P 1.877.GOMISHI | WWW.MISHIMOTO.COM

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05. Locate the triangular bracket. Using the supplied hardware,

install this bracket on the passenger side of the engine bay.

The front of the bracket installs to the threaded hole that secures

the airbox; the back of the bracket installs to the open hole

near the ABS pump. Reach behind the fender to install and hold

the rear bolt while tightening. (2x 10mm bolts, 1x 10mm nut)

06. Install a catch can on this bracket so that both ports face

toward the driver side. (2x 2.5mm bolts)

07. Remove the two pop-clips that secure the back of the plastic

engine cover. Then remove the engine cover from the vehicle

by lifting it from the front edge. (2x pop-clips)

08. Remove the two pop-clips that secure the intake air duct

to the radiator support. Then remove the intake air duct.

(2x pop-clips)

09. Remove the mounting bracket that supported the front edge

of the engine cover. This bracket is secured with two bolts.

(2x 10mm bolts)

10. Note the routing of the serpentine belt, and draw a diagram

for reference. Use a 14mm socket or wrench to turn the

tensioner pulley in a clockwise direction. Then remove the

belt from the AC compressor.

11. Disconnect the wiring harness for the AC clutch.

12. Unclip the tie-downs for the alternator charge cable.

13. Unbolt the AC compressor and move it out of the way. The

engine hoist bracket will also come out. Four bolts hold in

the compressor: two behind the compressor and two below

the pulley. (4x 14mm bolts)

14. Slide the AC compressor forward and locate the crankcase

vent hose connection (under the AC compressor). Use a pair

of pliers to squeeze the clamp and move it up the hose.

Then pull the hose off the plastic crankcase vent.

15. Remove the pop-clips that secure the crankcase vent hose

to the intake manifold. Remove the vent hose from the

turbo inlet housing, and then remove the hose completely.

(2x pop-clips)

CONTINUED ON FOLLOWING PAGE

2015+ SUBARU WRX BAFFLED CATCH CAN SYSTEM INSTALLATION GUIDE

MISHIMOTO | 18 BOULDEN CIRCLE, NEW CASTLE, DE 19720 | P 877.466.4744 | WWW.MISHIMOTO.COM

MISHIMOTO | 18 BOULDEN CIRCLE, NEW CASTLE, DE 19720 | P 1.877.GOMISHI | WWW.MISHIMOTO.COM

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16. Locate the shortest hose in the kit. Install this hose onto the

crankcase vent port under the AC compressor. The end with

only one bend installs onto the crankcase vent port. Route

the hose under the AC lines, alongside the positive alternator

cable (toward the catch can). Then secure it onto the crankcase

vent with a worm-gear clamp. (1x worm-gear clamp)

17. Install the AC compressor and engine hoist bracket with the

original hardware. (4x 14mm bolts)

18. Use a 14mm socket or wrench to turn the tensioner pulley

in a clockwise direction, then install the belt onto the

AC compressor.

19. Connect the wiring harness for the AC compressor clutch.

20. Locate the longest silicone hose in the kit. Install the end

with the most bends onto the port on the turbo inlet housing,

and secure it with a worm-gear clamp. (1x worm-gear clamp)

21. Install the crankcase vent hoses onto the catch can. Slip a

worm-gear clamp over the free ends of both hoses. The hose

that comes from the crankcase vent will install to the port

marked IN on the catch can. The hose that comes from the

turbo inlet housing will install to the port marked OUT on the

catch can. Secure both hoses with the worm-gear clamps.

(2x worm-gear clamps)

22. Loosen the clamps at the inlet and outlet of the intercooler.

23. Remove the driver-side intercooler mounting bracket.

(3x 12mm bolts)

24. Remove the bolt that secures the intercooler mounting

bracket on the passenger side. (1x 12mm bolt)

25. Remove the intercooler completely.

26. Locate the PCV hose. This is a short hose running from a

port on top of the engine to a port on the back of the intake

manifold. Use pliers to squeeze the clamps and slide them

down the hose, and then remove the hose completely.

27. Locate the hose with the single 90̊ bend. Slip a worm-gear

clamp over the end with the 90̊ bend, then install this onto

the PCV valve on the engine block. Secure the hose with the

worm-gear clamp. (1x worm-gear clamp)

28. Locate the last hose in the kit. Install the straight end of this

hose onto the port on the intake manifold. Secure the hose

with a worm-gear clamp. (1x worm-gear clamp)

29. Route the hoses under the intercooler inlet pipe and main

wiring harness, then over the ABS pump to the catch can.

30. Slip a worm-gear clamp over the ends of both hoses. The

hose that comes from the PCV valve installs to the port

marked IN on the catch can. The hose that comes from the

intake manifold installs to the port marked OUT on the

catch can. Secure both hoses with the worm-gear clamps.

(2x worm-gear clamps)

31. Install the intercooler. Secure the passenger side of the

intercooler with the original hardware. (1x 12mm bolt)

32. Install the driver-side intercooler mounting bracket, and

secure it with the original hardware. (3x 12mm bolts)

33. Tighten the clamps at the intercooler inlet and outlet.

CONTINUED ON FOLLOWING PAGE

2015+ SUBARU WRX BAFFLED CATCH CAN SYSTEM INSTALLATION GUIDE

MISHIMOTO | 18 BOULDEN CIRCLE, NEW CASTLE, DE 19720 | P 877.466.4744 | WWW.MISHIMOTO.COM

MISHIMOTO | 18 BOULDEN CIRCLE, NEW CASTLE, DE 19720 | P 1.877.GOMISHI | WWW.MISHIMOTO.COM

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34. Secure the hose that crosses over the engine to the intake

manifold, using the supplied tree-clip zip ties, and then

snip off the excess length. These zip ties will attach to the

original mounting location for the crankcase vent tube.

(2x tree-clip zip ties)

35. Install the mounting bracket for the engine cover using the

original hardware. (2x 10mm bolts)

36. Install the intake air duct. (2x pop-clips)

37. Install the engine cover and secure it with the original

hardware. (2x pop-clips)

ENJOY!

Congrats! You just fi nished installing the 2015+ Subaru WRX Baffled Catch Can System.

2015+ SUBARU WRX BAFFLED CATCH CAN SYSTEM INSTALLATION GUIDE

MISHIMOTO | 18 BOULDEN CIRCLE, NEW CASTLE, DE 19720 | P 877.466.4744 | WWW.MISHIMOTO.COM