Owners manual

3/14/2016
INS5272
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 Installation
2014+ 5.3L Silverado Sierra
Dual Under the Bumper w/ Dual 4.0” Pro Series Tip
PN 14867 (119” WB);
PN 14869 (143.5” WB); PN 14870 (153” WB)
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. Locate the CORSA headpipe assembly and slide the spherical joint onto the factory pipe. Reuse the factory
spherical clamp and loosely snug the spherical joint. Insert the hanger into the factory grommet. (See Fig. I)
Note: Using a soapy solution on the grommet hole will make the job easier.
2. Slide a supplied 3” TORCA clamp over the inlet of the CORSA muffler. Make sure the weep hole is facing down
then slide the muffler onto the headpipe and pre-tighten the clamp so it is snug but can still rotate. (See Fig’s
J, K & L)
3. Slide a supplied 3” TORCA clamp over the inlet of the CORSA Dual “Y” Assembly and insert over the muffler exit
and place the hangers into the factory grommets. Pre-tighten the clamp. (See Fig’s M, N, O & P)
Note: Using a soapy solution on the grommet hole will make the job easier.
4. Slide a 2.5” TORCA clamp over the passenger side tailpipe assembly and place the pipe onto the upper end of
the Dual “Y” Assembly and insert the hanger into the factory grommet. Pre-tighten the clamp at this time.
(See Fig’s Q, R, S & T)
5. Slide a 2.5” TORCA clamp over the “Driver Over the Axle Pipe” and place the pipe onto the lower end of the
Dual “Y” Assembly. Leave the pipe loose at this time for adjustment when placing the driver side tailpipe onto
the over the axle pipe. (See Fig’s U, V & W)
6. Locate Driver Side tailpipe hanger assembly (“U” shaped Wire Loop & Plate) and hardware (threaded Mounting
Plate, bolt and washers. (See Fig. X) On the driver side of the vehicle, position the threaded rectangular-
shaped mounting plate on top of the frame rail over the hole located furthest forward from the rear of the
frame rail. (See Fig’s Y & Z)
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