Gibson 20-22 Silverado/GMC Sierra 2500 HD 6.6L Crew Cab (Long Bed) Cat-Back Dual Extreme Exhaust Gibson GIB65714
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Gibson 20-22 Silverado/GMC Sierra 2500 HD 6.6L Crew Cab (Long Bed) Cat-Back Dual Extreme Exhaust

Gibson
GIB65714
677418033465
Catback
1 Units In Stock - Ships Next Business Day
$ 1,700.90
$ 1,700.90

SKU: 65714 | UPC: 677418033465

Gibson 2020-2024 Silverado GMC Sierra 2500HD 3500HD Crew Cab Long Bed 6.6L Cat-Back Dual Extreme Exhaust

This Gibson cat-back dual exhaust system bolts on behind the rear tires for 2020-2024 Chevrolet Silverado 2500HD 3500HD and GMC Sierra 2500HD 3500HD Crew Cab Long Bed models with 6.6L L8T V8 gas engine. It delivers dyno-tested gains of 15-20 horsepower and 20-25 lb-ft torque on average with an aggressive exhaust tone outside and drone-free cabin inside. Polished stainless tips enhance street presence while the easy bolt-on design installs without welding.

Key Features

  • Dyno-Tuned Performance: Tested gains of 15-20 HP and 20-25 lb-ft torque improve acceleration and towing power for heavy-duty trucks.
  • Aggressive Sound Profile: Powerful deep tone outside the cab with minimal interior drone for daily driving comfort.
  • Bolt-On Installation: Direct-fit stainless steel components use factory hangers no cutting or welding needed.
  • Polished Stainless Tips: Dual 4-inch by 4-inch 304-grade rolled-edge tips exit at a sharp angle for bold rear styling.
  • Gibson Muffler Design: Patented chambered muffler produces mean V8 rumble backed by lifetime limited warranty.

Product Notes

  • EPA compliant for all states no restrictions on sound levels.
  • Constructed from 409-grade stainless steel tubing for corrosion resistance and durability.
  • Heavy-duty part ships freight or ground based on carrier options.

Installation Notes

  • Professional installation recommended.
  • Bolts directly to stock catalytic converter and uses OEM hangers for 1-2 hour install.
  • Includes all clamps hardware and instructions no modifications required.

This Part Fits

Year Make Model Submodel
2023-2024 Chevrolet Silverado 2500 HD Custom
2023-2024 Chevrolet Silverado 2500 HD High Country
2023-2024 Chevrolet Silverado 2500 HD LT
2023-2024 Chevrolet Silverado 2500 HD LTZ
2023-2024 Chevrolet Silverado 2500 HD WT
2023-2024 Chevrolet Silverado 3500 HD LT
2023-2024 Chevrolet Silverado 3500 HD LTZ
2023-2024 Chevrolet Silverado 3500 HD WT
2023-2024 GMC Sierra 2500 HD AT4
2024 GMC Sierra 2500 HD AT4X
2022-2024 GMC Sierra 2500 HD Denali
2023-2024 GMC Sierra 2500 HD SLE
2023-2024 GMC Sierra 2500 HD SLT
2023-2024 GMC Sierra 3500 HD AT4
2023-2024 GMC Sierra 3500 HD Denali
2023-2024 GMC Sierra 3500 HD Pro
2023-2024 GMC Sierra 3500 HD SLE
2023-2024 GMC Sierra 3500 HD SLT

Why Choose Gibson?

  • Decades of exhaust engineering for trucks with dyno-proven results.
  • High-flow muffler and mandrel-bent tubing for reliable power gains.
  • American-made quality with lifetime structural warranty on every system.

Frequently Asked Questions

  • Q: Will this fit my 2024 Silverado 2500HD Crew Cab Long Bed?
    A: Yes fits all listed 2020-2024 Crew Cab Long Bed models with 6.6L gas engine confirm your submodel above.
  • Q: What materials are used in construction?
    A: 3-inch 409 stainless steel tubing pairs with 304 stainless polished tips for lasting shine and strength.
  • Q: What warranty coverage applies?
    A: Lifetime limited warranty covers structural defects and corrosion when installed and maintained properly.

Shipping & Handling

  • Method: UPS Freight or Ground
  • Availability: In stock - ships same or next business day
  • Packaging: Single oversized box 57 x 14 x 14 inches
  • Weight: 74 lbs
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