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Gibson Exhaust 615638 Cat-Back Single Exhaust System Stainless Steel

(2021-2022 Chevrolet Tahoe; 2021-2023 GMC Yukon)

Part of: Gibson Performance Single Side Cat-Back Exhaust System

Other options in this family: Gibson Exhaust 619995 Gibson Exhaust 319675 Gibson Exhaust 315536 Gibson Exhaust 618815B Gibson Exhaust 315599

Manufacturer

Picture for manufacturer Gibson Exhaust

Part Number

615638
9 reviews
Sale Price

$728.78

Estimated ship date Monday, November 23

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Product Details

The Gibson Exhaust 615638 Cat-Back Single Exhaust System delivers exceptional performance gains for improved acceleration, towing capacity, and passing power. This stainless steel exhaust system is engineered to maximize torque and horsepower in the low-end power band (1800-3000 RPM), where most drivers need it most.

Performance Benefits:

  • Dyno-tested horsepower gains averaging 10-15 HP
  • Torque increase of 15-20 lb-ft for superior towing and hill climbing
  • Optimized for low-end power delivery where it matters most
  • Quieter in-cab sound compared to other performance exhaust systems
  • Single side exit behind rear tire for clean appearance

Quality Construction:

  • Baffled and chambered muffler design with no internal packing
  • Minimal interior drone for comfortable highway driving
  • Mild, deep exhaust tone without excessive noise
  • 8-inch round muffler body measuring 24 inches long
  • 3-inch center inlet and outlet for optimal flow
  • 4-inch polished T304 stainless steel rolled slash-cut tip
  • 12-inch clamp-on tip with 3-inch inlet and 4-inch outlet

Installation:

  • Hassle-free bolt-on installation with no welding required
  • Professional-looking results with factory-style fit
  • Complete cat-back system for comprehensive upgrade

Backed by Gibson's Lifetime Limited Warranty, this exhaust system combines performance, quality, and durability for long-lasting results.

Products specifications

Fits

2021-2022 Chevrolet Tahoe; 2021-2023 GMC Yukon

Tubing Diameter

3-in. Stainless mandrel bent tubing.

Muffler Dimension

8 in. Round Body; 3.00 in. Center Inlet; 3.00 in. Center Outlet; L-24 in.

Material

Stainless

Muffler Description

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

Prop 65

Yes

Tip Description

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

Exit Position

Exits Behind Rear Tire.

Tip Specifications

Inlet 3 in.; Outlet 4 in.; L-12 in.

Outlet

Single

Category

Truck and SUV

Material

T304 Stainless Steel

Exit Position

Behind Rear Tire

Inlet Inside Diameter

3.000 in.

Tip Diameter

4.000 in.

Tubing Diameter

3.000 in.

Exhaust Type

Cat-Back

I ordered a steering rack. Because of the large size I thought it would take a few extra days to arrive but it actually arrived early.

Great find.

so far, so good. although, I have not yet received my order.

Great price

Okay, charge for shipping still to this day. I almost walk because of the shipping charge.

Fast and easy so far

Good

Good product

Easy

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