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Gibson 65630 Cat-Back Dual Sport Exhaust System Stainless Steel

(2007-2010 Chevrolet Silverado 2500 HD; 2007 Chevrolet Silverado 3500 HD Base/LT/LTZ; 2007-2010 GMC Sierra 2500 HD)

Manufacturer

Part Number

65630
Sale Price

$946.31

Estimated ship date Wednesday, November 18

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Product Details

The Gibson 65630 Dual Sport Cat-Back Exhaust System is engineered for truck and SUV owners who want a performance upgrade that doesn't interfere with towing. The dual-exit design routes exhaust behind the rear tire on both sides, keeping the path clear of trailers while delivering a commanding visual presence on the street or trail.

Built on Gibson's proven Superflow muffler platform, the system features a baffled and chambered muffler design with no internal packing, minimizing interior drone while producing a deep, aggressive exhaust tone. Dyno-tested and dyno-tuned for its specific application, this system delivers average gains of 10–15 horsepower and 15–20 lb-ft of torque at the low-end power band (1,800–3,000 RPM) where it matters most for towing, hauling, and acceleration.

Key Features:

  • Muffler: Baffled and chambered design with no internal packing — aggressive sound with minimal cabin drone
  • Muffler Dimensions: 8 in. round body; 3.50 in. center inlet; 3.00 in. dual outlet; 24 in. length
  • Exhaust Tips: 4 in. polished T304 stainless steel, round slash-cut, clamp-on style
  • Tip Dimensions: 3 in. inlet; 4 in. outlet; 12 in. length
  • Construction: T304 stainless steel mandrel-bent tubing for unrestricted flow and long-term durability
  • Exit Location: Dual exits behind the rear tire — tow-friendly positioning that clears trailer connections
  • Installation: 100% bolt-on with all necessary hardware and factory-style hangers included — no welding required
  • Warranty: Backed by a Gibson Lifetime Limited Warranty
  • Made in the USA

The Gibson 65630 is a complete cat-back exhaust kit that replaces everything from the catalytic converter rearward, delivering a professional-quality installation with measurable performance gains and an authoritative exhaust note.

Products specifications

Fits

2007-2010 Chevrolet Silverado 2500 HD; 2007 Chevrolet Silverado 3500 HD Base/LT/LTZ; 2007-2010 GMC Sierra 2500 HD

Tubing Diameter

3-in. Stainless mandrel bent tubing.

Muffler Dimension

8 in. Round Body; 3.50 in. Center Inlet; 3.00 in. Dual Outlet; L-24 in.

Muffler Description

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

Material

Stainless

Prop 65

Yes

Exit Position

Exits Behind Rear Tire.

Tip Description

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

Tip Specifications

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

Outlet

Dual

Category

Truck and SUV

Exit Position

Behind Rear Tire

Inlet Inside Diameter

3.500 in.

Muffler Body Length

24.000 in.

Exhaust Type

Cat-Back

Tubing Diameter

3.000 in.

Tip Diameter

4.000 in.

Material

Stainless Steel

Tail Pipe Diameter

4.000 in.

They had an item that was somewhat hard to find at a reasonable price. Glad I found them.

You have an user friendly interface and well displayed, most important information about the product. I also appreciate technical information to make sure that I buy right product. I had a very good experience.

The best prices and fast shipping!

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Easy website to shop on. Good phone support. Package will be arriving in a timely manner. All in all seems like a good company.

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