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Gibson 5628 Cat-Back Dual Extreme Exhaust System Aluminized

(2007-2009 Chevrolet Silverado 1500; 2007-2009 GMC Sierra 1500)

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

Other options in this family: Gibson Exhaust 9704 Gibson Exhaust 5403 Gibson Exhaust 17306-B Gibson Exhaust 5587 Gibson Exhaust 65587

Manufacturer

Picture for manufacturer Gibson Exhaust

Part Number

5628
10 reviews
Sale Price

$850.54

Estimated ship date Tuesday, November 17

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Product Details

The Gibson 5628 Cat-Back Dual Extreme Exhaust System is engineered for the performance enthusiast who demands bold street presence and real power gains from their truck. This bolt-on cat-back system exits behind the rear tires at an aggressive angle, delivering a powerful, dyno-tuned exhaust tone without any cutting or welding required. Gibson's proven design delivers average horsepower gains of 15–20 HP, making it a true performance upgrade backed by real testing.

Key Features:

  • Dual exit cat-back system with aggressive rear-exit positioning behind the rear tires
  • Dyno-tuned and street-tested for consistent, measurable performance gains
  • Baffled and chambered muffler design — no internal packing, minimal interior drone, aggressive exhaust note
  • Muffler dimensions: 4 x 9 x 18 in. oval body; 3.00 in. center inlet; 2.25 in. dual outlet
  • Includes 3.5 in. polished T304 stainless steel round slash-cut tip — clamp-on style
  • Tip specifications: 2.25 in. inlet; 3.50 in. outlet; 12 in. length
  • Aluminized steel construction for durability and heat resistance
  • 100% bolt-on installation — no welding required
  • Backed by Gibson's Lifetime Limited Warranty

The Gibson 5628 combines the deep, aggressive tone of a performance muffler with the clean, polished finish of stainless tips — giving your truck the look and sound to match its performance. Easy enough for a home garage install, yet built to the standards of serious enthusiasts.

Products specifications

Fits

2007-2009 Chevrolet Silverado 1500; 2007-2009 GMC Sierra 1500

Tubing Diameter

2.25-in.Aluminized mandrel bent tubing.

Muffler Dimension

4 x 9 x 18 in. Oval Body; 3.00 in. Center Inlet; 2.25 in. Dual Outlet.

Muffler Description

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

Tip Specifications

Inlet 2.25in.; Outlet 3.50in.; L-12in.

Material

Aluminized

Prop 65

Yes

Tip Description

3.5in. Polished T304 Stainless. Round Slash-Cut Tip. Clamp on.

Exit Position

Exits Behind Each Rear Tire.

Outlet

Dual

Category

Truck and SUV

Outlet Outside Diameter

2.250 in.

Exit Position

Dual Split Rear Behind Rear Tires

Tip Diameter

3.500 in.

Inlet Inside Diameter

2.250 in.

Exhaust Type

Dual

Tubing Diameter

2.250 in.

Muffler Type

Chambered

Muffler Body Length

18.000 in.

Tip Logo

None

System Type

Cat Back

Tail Pipe Diameter

2.250 in.

Exit Style

Straight

Great so far. I'll know better once I receive and get to use it.

easy to order

Quick

Everything went well. decent site to navigate and shopping cart was good.

Found the part we've been searching for, for two years...

Shipping took a little longer than quoted

pleased so far

easy

Easy site to navigate with a nice GUI.

This caliper paint green and cool.

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