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
Installation of CORSA Exhaust System:
NOTE: Apply the anti-seize lubricant (supplied) to the threads ONLY of all the clamps and flange bolts. Failure to
follow this procedure can cause nuts to seize on clamps and potentially destroy threads. After applying anti-seize
lubricant, be sure to thoroughly clean your hands, as lubricant will tarnish stainless steel. All clamps should be
tightened using a properly calibrated Torque Wrench. Using an air impact gun will damage the clamp and reduce its
ability to effectively seal the joint. It may also cause the joint to separate, thereby
causing damage to your exhaust system and to your vehicle.
NOTE: Align all clamps so that the center of the clamp bolt is 90 degrees from the
notch in the pipe. (See Fig. CLAMP)
1. Remove all exhaust system components from the shipping boxes, including
the clamps, gasket and hardware.
When connecting to factory downpipe; continue to Step 2. If you’re connecting to an aftermarket 3” downpipe, skip
to Step 3:
2. Locate the M8 x 1.25 bolts and slide them into downpipe flange. Place the flange gasket onto the M8 bolts on
the downpipe flange, followed by the tunnel muffler assembly, washers and finally the nuts. Hand-tighten the
nuts. (Fig G & H) Continue to Step 4.
3. Any aftermarket downpipe used needs to maintain the OEM flange position and orientation to allow the Corsa
system to fit properly. Locate the M10 x 1.25 bolts and slide them into downpipe flange. Place the flange
gasket onto the M10 bolts on the downpipe flange, followed by the tunnel muffler assembly, washers and finally
the nuts. Hand-tighten the nuts. Continue to Step 4.
4. Locate a 3” Torca clamp and slide it over the expanded end of the axle pipe assembly. Install the clamp on the
axle pipe so that the bolts are vertical with the nut towards the ground and the bolt is towards the inside of the
car. (Fig I) Insert the axle pipe hanger into the factory grommet. (Fig J) Adjust the position and rotation of the
axle pipe until the outlet is parallel to the ground and has at least a finger width gap to the rear differential.
Tighten the clamp using the ratchet and the 15mm deep socket until the axle pipe is snug on the tunnel muffler.
Center the gasket on the flange, and then tighten the flange nuts using a 13mm socket and a 13mm wrench (for
the M8 hardware) or a 15mm socket and a 15mm socket (for the M10 hardware).
NOTE: The use of a soap and water solution may aid in the installation of the hanger grommets.
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