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Gibson 65680 Cat-Back Dual Split Exhaust System Stainless Steel

(2014-2020 Cadillac Escalade; 2015-2020 GMC Yukon Denali)

Part of: Gibson Performance Exhaust Dual Split Cat-Back Exhaust System

Other options in this family: Gibson Exhaust 700001 Gibson Exhaust 312700 Gibson Exhaust 17303-B Gibson Exhaust 9508 Gibson Exhaust 66568

Manufacturer

Picture for manufacturer Gibson Exhaust

Part Number

65680
10 reviews
Sale Price

$826.29

Estimated ship date Tuesday, November 17

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Live-in-stock inventory

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Fitment guaranteed

Fitment guaranteed

Product Details

The Gibson 65680 Cat-Back Dual Split Exhaust System is a bolt-on performance upgrade engineered to deliver an aggressive exhaust tone and measurable power gains. By reducing backpressure throughout the exhaust path, this system helps produce more torque and horsepower, with typical dyno-tested gains averaging 18–20 horsepower. Dual tips exit straight out the back for a clean, symmetrical appearance that works with most factory bumpers, roll pans, and trailer hitches.

Gibson SuperFlow Muffler:

  • Baffled and chambered muffler design for minimal interior drone
  • No internal packing for long-term durability and consistent sound
  • Delivers an aggressive, throaty exhaust note — louder under towing conditions
  • Muffler dimensions: 4 x 9 x 18 in. oval body; 3.0 in. center inlet; 2.25 in. dual outlet

Tips & Tubing:

  • 4 in. polished T304 stainless steel rolled slash-cut tips with clamp-on fitment
  • Tip specs: 2.25 in. inlet / 4.0 in. outlet / 12 in. length
  • Stainless mandrel-bent tubing for maximum exhaust flow and corrosion resistance

Installation & Included Hardware:

  • Hassle-free bolt-on installation — no welding required
  • Includes all hardware and factory-style hangers for a professional-looking fit
  • Backed by Gibson's Lifetime Limited Warranty for the original purchaser

WARNING: This product contains chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. See p65warnings.ca.gov for more information.

Products specifications

Fits

2014-2020 Cadillac Escalade; 2015-2020 GMC Yukon Denali

Tubing Diameter

3.5-in./2.25-in. Stainless mandrel bent tubing.

Muffler Dimension

4 x 9 x 18 in Oval Body; 3..0. in. Center Inlet; 2.25 in. Dual Outlet.

Muffler Description

Baffled and Chambered Muffler Design, No internal Packing, Minimal Interior Drone, Aggressive Sound

Exit Position

Exit Is Straight Out The Back.

Material

Stainless

Prop 65

Yes

Tip Description

4in. Polished T304 Stainless Rolled Slash-Cut Tip. Clamp on.

Tip Specifications

Inlet 2.25 in.; Outlet 4.0 in.; L-12 in.

Outlet

Dual

Category

Truck and SUV

Tip Logo

None

System Type

Cat Back

Muffler Type

Chambered

Tip Diameter

4.000 in.

Material

304 Stainless Steel

Tubing Diameter

3.500 in.

Tail Pipe Diameter

2.250 in.

Exit Style

Straight

Exit Position

Straight Out Back

Inlet Inside Diameter

3.500 in.

Exhaust Type

Single

Muffler Body Length

18.000 in.

Outlet Outside Diameter

3.500 in.

Tail Pipe Material

Stainless Steel

Great Prices

Delayed

Good prices and user friendly site!

Fast and easy!

Excellent prices and fast shipping. I will order from here again

Quick-n-easy

My experience with autoplicity was great. Great selection and service. Fast shipping. Will definitely use them again.

Shipping took a little longer than quoted

Great price, fast shipping. Ordered Monday afternoon and had it Wednesday morning. Their customer service is very helpful and they usually have the parts I need in stock.

Best price I could find. It was delivered just when I needed it. Thank you !

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