Gibson 21-22 GMC Yukon XL 1500/Chevrolet Suburban 1500 5.3L Cat-Back Single Exhuast - Stainless Gibson GIB615639
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Gibson 21-22 GMC Yukon XL 1500/Chevrolet Suburban 1500 5.3L Cat-Back Single Exhuast - Stainless

Gibson
GIB615639
677418033228
Catback
1 Units In Stock - Ships Next Business Day
$ 1,411.34
$ 1,411.34

SKU: 615639 | UPC: 677418033228

Gibson 2021-2023 GMC Yukon XL 1500/Chevrolet Suburban 1500 5.3L Cat-Back Single Exhaust - Stainless

Gibson 615639 stainless cat-back exhaust system replaces the factory exhaust from the catalytic converter back with a single side exit behind the rear tire. Designed for 2021-2023 Chevrolet Suburban 1500 and GMC Yukon XL 1500 equipped with 5.3L V8 engines. Dyno tests prove gains of 10-15 horsepower and 15-20 lb-ft torque from 1800-3000 RPM for stronger acceleration, towing, hill climbing and passing power while staying quieter inside the cab.

Key Features

  • Performance Gains: Dyno-tested increases of 10-15 HP and 15-20 lb-ft torque at low-end RPM for real-world power in towing and daily driving
  • Single Side Exit: Positions outlet behind rear tire for clean appearance and balanced flow without drone
  • Cab Comfort: Engineered to reduce interior noise more than other performance exhausts for a refined drive
  • Bolt-On Design: Direct fit installation using factory hangers with no welding or cutting required
  • Stainless Construction: Durable stainless steel tubing and muffler resist corrosion for long-lasting performance

Product Notes

  • 3-inch pipe diameter with 4x6x14-inch muffler and 4-inch angle-cut tip for optimal flow
  • EPA compliant for street-legal use across all states
  • 59 lbs product weight ships in 48 x 18 x 18 inch box

Installation Notes

  • Professional installation recommended.
  • Hassle-free bolt-on process takes 1-2 hours with basic tools
  • Uses provided stainless clamps and hangers for secure factory-like fit

This Part Fits

Year Make Model Submodel
2021-2023 Chevrolet Suburban Commercial
2021-2023 Chevrolet Suburban LS
2021-2023 Chevrolet Suburban LT
2021-2023 Chevrolet Suburban Premier
2021-2023 Chevrolet Suburban RST
2021-2023 Chevrolet Suburban Z71
2021-2023 GMC Yukon XL AT4
2021-2023 GMC Yukon XL SLT

Why Choose Gibson?

  • Proven dyno results from in-house testing ensure verified power gains
  • Premium stainless materials built for daily driving and heavy towing
  • Lifetime limited warranty covers defects for peace of mind

Frequently Asked Questions

  • Q: Does this fit 2021-2023 Suburban and Yukon XL with 5.3L V8 only?
    A: Yes, confirmed fit for listed 5.3L models and submodels. verify engine size before purchase
  • Q: What material is used in the exhaust?
    A: High-grade stainless steel tubing, spun saturator muffler and polished 4-inch tip for rust resistance and shine
  • Q: What warranty and sound level can I expect?
    A: Lifetime limited warranty. provides aggressive exterior tone with minimal cab drone for comfortable cruising

Shipping & Handling

  • Method: UPS Ground or Freight
  • Availability: In stock - ships same or next business day
  • Packaging: Securely boxed at 48 x 18 x 18 inches
  • Weight: 59 lbs

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