Owners manual

9/6/2017
INS5287
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
Cat Back Exhaust System
2015+ Chevrolet Tahoe
2015+ Yukon/6.2L Denali, Escalade/ESV
Single Side Exit w/ Twin 4.0” Pro-Series Tip
PN 14859 & 14859BLK, 14826 & 14826BLK
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 system components from the shipping box, including the clamps.
2. Locate the CORSA head pipe assembly and the factory spherical joint retained from the removal process. Rotate the
head pipe until the hanger shoulder is parallel to the ground, then snug the clamp at the spherical connection using
a shallow 13 mm socket and ratchet. (Fig. Q & R) Note: Using a soapy solution on the grommet hole will make the
job easier.
3. Slide the supplied 3” TORCA clamp over the inlet of the CORSA muffler. Make sure the muffler is oriented so the
drain hole is facing down, then slide the muffler onto the head pipe and snugly tighten the clamp with a 15mm
socket and ratchet. (Fig. S & T)
4. From the front side of the vehicle, slide the CORSA tail pipe over the axle towards the rear, passing the hanger
through the voids in the spring. Slide the supplied 3” TORCA clamp over the inlet of the CORSA tail pipe before
inserting the pipe onto the muffler outlet. Install each hanger into the factory grommets. Rotate the tail pipe to
adjust the height of the tail pipe outlet (Note: temporarily mocking up the tip assembly on the end of the tail pipe
may aid in this step). Snugly tighten the clamp using a 15mm socket and ratchet. (Fig. U, V, W, X, and Y)
Note: Using a soapy solution on the grommet holes will make the job easier.
5. Slide a 3” TORCA clamp over the tip assembly inlet, and place the tip onto the end of the tail pipe. Adjust assembly
inlet on tail pipe so that tips match bevel of the rear quarter panel. Rotate the tip assembly until tips have equal
clearance to the side of the rear bumper cover. Snugly tighten the clamp at this time using a 15mm socket and
ratchet. (Fig. Z, AA, & BB) NOTE: Tail pipe rotation varies by vehicle.
6. Adjust all CORSA components to attain clearance to surrounding parts. Starting from the front of the CORSA
exhaust system, tighten all TORCA clamps to 45 ft-lbs and all spherical clamps to 21 ft-lbs using a torque wrench.
7. Reinstall the heat shield using a 15mm socket and ratchet. Replace the spare tire to pre-removal condition, and
replace the lock and cover plate in the rear bumper. (Fig. CC & DD)
8. It is strongly suggested that all clamps be checked and tightened after road testing the vehicle, once the system
has cooled.
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.