Details

• Brand:

  

• SKU:

  84964742

• Positions: Rear
• Other Names:

  Performance, Exhaust Upgrade

• Description:

  Upgrade your Sierra's performance with the Genuine GM OEM Exhaust Muffler Kit (MPN: 84964742), a premium cat-back exhaust system engineered to deliver increased horsepower and aggressive sound. This 304 stainless steel exhaust kit reduces backpressure while improving engine breathing, making it an ideal performance upgrade for GMC Sierra owners seeking both power and customization. Designed and validated by Chevrolet Performance engineers, this genuine GM part is 50-state emissions legal and maintains your factory warranty. - Genuine GM OEM Exhaust Muffler Kit with polished stainless steel construction for durability and aesthetic appeal - OEM fitment for GMC Sierra 5.3L short wheelbase models with direct bolt-on installation using included hardware - Delivers up to 7 horsepower and 4 lb.-ft. torque gains while reducing exhaust backpressure by 35% at 300-g/s flow - Complete cat-back system includes muffler assembly, Y-pipe, tail pipe, catalytic converter, exhaust clamps, and polished tip with minimal drone tuning - Condition: Brand new Genuine OEM part; emissions compliant and does not void factory limited warranty

• Condition: New
• Notes: Exhaust Upgrade System with Polished Tip and GMC Logo.
• Replaces:

  84173608

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