2021 Sierra 1500 Performance Exhaust | Crew Cab | Double Cab | 5.3L | Dual Rear | Quad Black Tips

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Additional Information
  • Part # 19419439
  • Manufacturer : Genuine GM+
$2,299.00 $1,839.20
Qty :

Give the 5.3L Engine in your Next Generation Sierra 1500 Crew Cab or Double Cab (aka Extended Cab) a throaty purr with this GMC Accessories Quad Tip Performance Exhaust System. This kit reduces restrictions in the exhaust pipes and expands the diameter of stock pipes, allowing your engine to breathe better, and is made from T-304 stainless steel. With large front 3-inch and rear split 2.75-inch outer-diameter 304 stainless-steel pipes, this system offers up to a [41 percent reduction in back pressure at 300 g/s at 600 degrees C], up to a 10-hp improvement at 5,600 rpm and up to 6 additional pound-feet of torque at 4,100 rpm compared with the production exhaust system. This Rear-Exit through the Bumper Exhaust Upgrade system is a bolt-on cat-back and includes everything required for a complete installation. Emissions-legal in all 50 states, this system will not void the New-Vehicle Limited Warranty. The estimated power is based on SAE test procedure J1349. Designed for 147.4" Wheel Base Models which includes Crew Cab with Short Bed and Double Cab with Standard Bed. This Requires removal of integrated rear bumper exhaust tips as they are replaced with Quad Tips.


  • Designed and Engineered by GMC
  • Genuine GMC Accessories provide Factory Fit, Finish and Function
  • Up to a 10-hp improvement and up to 6 additional pound-feet of torque
  • Direct Replacement with NO welding required
  • T-304 Stainless Steel Construction with Integrated Hangers
  • Features Black Chrome Quad Tips
  • Catalytic Converter Back (CatBack) System
  • Rear-Exit through the Bumper Exhaust Upgrade requires removal of integrated rear bumper exhaust tips as they are replaced with Quad Tips
  • Designed for 147.4" Wheel Base Models which includes Crew Cab with Short Bed (5'-8") and Double Cab with Standard Bed (6'-6")
  • Designed for Models with 5.3L Gas (L82) Engine
  • Designed for Models with Dual Exhaust Rear Bumper Exit (N10)

Sierra 1500 Performance Exhaust | Crew Cab | Double Cab | 5.3L | Dual Rear | Quad Black Chrome Tips

California Residents:
California Prop 65 Warning California Prop 65 WARNING: Cancer and Reproductive Harm. For more information go to https://www.P65Warnings.ca.gov

  • Part # 19419439
  • MSRP: $2299.0000 USD
  • PRICE VALID UNTIL: 05-31-2022
  • California Prop 65 Warning California Prop 65 WARNING: Cancer and Reproductive Harm. For more information go to https://www.P65Warnings.ca.gov

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