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Gibson 07-12 Chevrolet Avalanche LS 5.3L 2.25in Cat-Back Dual Sport Exhaust - Aluminized Gibson GIB5574
Gibson 07-12 Chevrolet Avalanche LS 5.3L 2.25in Cat-Back Dual Sport Exhaust - Aluminized Gibson GIB5574
Gibson 07-12 Chevrolet Avalanche LS 5.3L 2.25in Cat-Back Dual Sport Exhaust - Aluminized Gibson GIB5574
Gibson 07-12 Chevrolet Avalanche LS 5.3L 2.25in Cat-Back Dual Sport Exhaust - Aluminized Gibson GIB5574
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Gibson 07-12 Chevrolet Avalanche LS 5.3L 2.25in Cat-Back Dual Sport Exhaust - Aluminized

Gibson
GIB5574
677418015805
Catback
Out of stock
$ 1,523.89

SKU: 5574 | UPC: 677418015805

Gibson 07-12 Chevrolet Avalanche LS 5.3L 2.25in Cat-Back Dual Sport Exhaust - Aluminized

This Gibson cat-back dual exhaust system delivers style and performance to your Chevrolet Avalanche Suburban 1500 or GMC Yukon XL 1500 with 5.3L V8 engines from 2007-2014. It exits behind the rear tire for a standout look on street or trail while preserving towing capability. Dyno tests confirm average gains of 10-15 horsepower and 15-20 lb-ft torque with a deep authoritative tone and zero cab drone.

Key Features

  • Bolt-On Installation: Direct fit using factory hangers no welding or cutting needed for professional results in hours.
  • Performance Gains: Dyno-proven 10-15 HP and 15-20 lb-ft torque increases for stronger acceleration and towing.
  • Sound Quality: Dual sport mufflers produce powerful deep exhaust note outside with no interior buzz or drone.
  • Durable Construction: 2.25-inch aluminized steel tubing resists corrosion for long-lasting performance.
  • Lifetime Warranty: Covers structural defects giving peace of mind for years of use.

Product Notes

  • Side-exit design behind rear tire maintains ground clearance and trailer hitch access.
  • Aluminized steel withstands harsh conditions without rust-through.
  • MPN 5574 designed specifically for 5.3L V8 applications.

Installation Notes

  • Professional installation recommended.
  • Bolt-on process uses OEM mounting points no fabrication required.
  • Compatible with stock catalytic converters and hangers.

This Part Fits

Year Make Model Submodel
2013 Chevrolet Avalanche Black Diamond LS
2013 Chevrolet Avalanche Black Diamond LT
2013 Chevrolet Avalanche Black Diamond LTZ
2007-2012 Chevrolet Avalanche LS
2007-2012 Chevrolet Avalanche LT
2007-2012 Chevrolet Avalanche LTZ
2007-2014 Chevrolet Suburban 1500 LS
2007-2014 Chevrolet Suburban 1500 LT
2007-2014 Chevrolet Suburban 1500 LTZ
2007 Chevrolet Suburban 1500 Z71
2007-2014 GMC Yukon XL 1500 SLE
2007-2014 GMC Yukon XL 1500 SLT

Why Choose Gibson?

  • 30+ years crafting American-made exhaust systems for trucks and SUVs.
  • Every system dyno-tested for real-world power and sound gains.
  • Precision mandrel-bent tubing ensures smooth flow and fit.

Frequently Asked Questions

  • Q: Will this fit my 2013 Avalanche Black Diamond LS 5.3L?
    A: Yes it bolts directly to 2007-2013 Avalanche 1500 5.3L models including Black Diamond editions using factory mounts.
  • Q: What material is used in Gibson 5574?
    A: 2.25-inch aluminized steel tubing and dual sport mufflers built for durability in off-road and towing conditions.
  • Q: What does the lifetime warranty cover?
    A: Structural defects on tubing mufflers and hangers when installed and used properly no mileage limit.

Shipping & Handling

  • Method: Standard ground shipping
  • Availability: In stock - ships same or next business day
  • Packaging: One oversized box 58in L x 16in W x 14in H
  • Weight: 49 lbs

Request For Information

Have questions about Gibson 07-12 Chevrolet Avalanche LS 5.3L 2.25in Cat-Back Dual Sport Exhaust - Aluminized? Fill out the form below and we'll get back to you by the next business day.
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