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Please take time to read and understand these installation instructions.
CORSA recommends that the installation of this system be performed by a qualified service center or professional
muffler installer who has the necessary equipment, tools and experienced personnel. However, if you decide to
perform this install, the use of a lift and an additional person will be required.
CAUTION: Never work on a hot exhaust system. Allow time for the vehicle to cool. Always wear eye protection when
working under a vehicle.
Recommended Tools:
3/8" drive ratchet
3/8" drive 13mm deep socket
3/8" drive 15mm deep socket
Small flathead screwdriver or similar tool
Chain-style pipe cutter or similar device
Please confirm that all parts are present before beginning the factory exhaust system removal and CORSA exhaust
system installation.
Cat Back Exhaust System
Single Side Exit w/ Twin 4.5" Pro-Series Tips
2014+ Chevrolet Silverado/GMC Sierra 1500 6.2L
143.5" & 153" Wheel Base
PN: 14866, 14866BLK
Grommet pullers
Soap and water solution
Torque Wrench
Penetrating lubricant spray
Safety glasses
Bill of Materials
1. 16SE2034 – Muffler Assembly
2. 16SE3028 – Tip Assembly
3. 16SE4474 – Head Pipe Assembly
4. 16SE4478 – Tail Pipe Assembly
5. 16SE4487 – 153" WB Adapter Pipe
6. 16SE7100 – Hardware Kit
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Summary of Contents for Corsa 14866
- Page 1 Please take time to read and understand these installation instructions. CORSA recommends that the installation of this system be performed by a qualified service center or professional muffler installer who has the necessary equipment, tools and experienced personnel. However, if you decide to perform this install, the use of a lift and an additional person will be required.
- Page 2 Single Side Exit w/ Twin 4.5” Pro-Series Tips 2014+ Chevrolet Silverado/GMC Sierra 1500 6.2L 143.5” & 153” Wheel Base PN: 14866, 14866BLK Factory Exhaust System Removal: 1. Beginning near the flex section, loosen the clamp using the ratchet and 13mm deep socket. (Fig A) Note: Penetrating lubricant may make this step easier.
- Page 3 Cat Back Exhaust System Single Side Exit w/ Twin 4.5” Pro-Series Tips 2014+ Chevrolet Silverado/GMC Sierra 1500 6.2L 143.5” & 153” Wheel Base PN: 14866, 14866BLK Factory Exhaust Removal Pictures Fig. A Fig. B Fig. D Fig. C Fig. E...
- Page 4 2014+ Chevrolet Silverado/GMC Sierra 1500 6.2L 143.5” & 153” Wheel Base PN: 14866, 14866BLK 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.
- Page 5 Single Side Exit w/ Twin 4.5” Pro-Series Tips 2014+ Chevrolet Silverado/GMC Sierra 1500 6.2L 143.5” & 153” Wheel Base PN: 14866, 14866BLK NOTE: During cold weather start-ups, you may experience an exhaust sound that is deeper and louder in tone than usual.
- Page 6 Cat Back Exhaust System Single Side Exit w/ Twin 4.5” Pro-Series Tips 2014+ Chevrolet Silverado/GMC Sierra 1500 6.2L 143.5” & 153” Wheel Base PN: 14866, 14866BLK CORSA Exhaust Installation Pictures: Fig. E Fig. F Fig. G Fig. H...
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