Owners manual

02/02/15
INS5291
CORSA Performance · 140 Blaze Industrial Pkwy · Berea, OH 44017 · P: [phone] · F: [phone]
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E - M a i l : s a l e s @ c o r s a p e r f o r m a n c e . c o m · w w w . c o r s a p e r f o r m a n c e . c o m
Exhaust System Installation
Cat Back Exhaust System
Subaru GR STI Sedan
PN 14863
Cat-Back Exhaust System
3.0” Dual Rear Exit; Quad 3.5” Pro-Series Tips
2015+ Subaru WRX & WRX STI Sedan
PN 14857 / 14857BLK
5. Locate a 3” Torca clamp and slide it over the expanded end of the Y-split assembly inlet. Install the clamp on the
Y-split assembly so that the bolts are vertical with the nut towards the ground and the bolt is towards the inside
of the car. Slide the Y-split inlet onto the axle pipe. (Fig K) Tighten the clamp using the 15mm deep socket until
the Y-split assembly is snug on the axle pipe. (Fig L)
6. Locate a 3” Torca clamp and slide it onto the expanded end of the driver rear muffler assembly. Install the
clamp on the rear muffler assembly so that the bolts are vertical with the nut towards the ground and the bolt is
towards the front of the car. Insert the muffler hangers into the stock hanger grommet located to the left and
right of the muffler. (Fig M) Slide the expanded end of the muffler assembly over the Y-split outlet pipe. (Fig N)
Repeat for the passenger side rear muffler assembly.
7. Tighten the clamps using the 15mm deep socket until the driver and passenger rear muffler assemblies are snug
on the Y-split assembly. (Fig O) Adjust the depth and rotation of each of the rear mufflers to center the tips in
the cutouts in the rear valence. (Fig P) The Y-split assembly rotation may need to be adjusted to help center the
exhaust tips within the valence cutouts.
8. Visually inspect and adjust the exhaust system position, tip alignment, clamp orientation and exhaust pipe
clearance.
9. When the exhaust system is in the desired location, tighten the nuts on the clamps. Torque nuts to 45 ft-lbs (61
N-m)
10. It is STRONGLY SUGGESTED that all clamps be checked and re-tightened (if necessary) to the recommended
torque after initial road testing of the vehicle, as thermal cycling has occurred on the system. Please wait until
system has fully cooled to perform this step.
NOTE: During cold weather start-ups, you may experience an exhaust sound that is deeper and
louder in tone than usual. This is temporary and will diminish to normal levels once your engine
has reached its normal operating temperature.
NOTE: Immediately following the installation of your exhaust system, you may experience a trace
of smoke after initial start-up. DO NOT be alarmed. The smoke is caused by the burning of a small
amount of forming oil residue used in the manufacturing process.
INSTALLATION PICTURES ON NEXT PAGE