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Gibson 65558 Cat-Back Dual Split Exhaust System Stainless Steel

(2001-2007 Chevrolet Silverado 2500 HD; 2001-2007 Chevrolet Silverado 3500; 2002-2007 GMC Sierra 2500 HD; 2001-2007 GMC Sierra 3500)

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

65558
6 reviews
Sale Price

$945.47

Estimated ship date Monday, November 16

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Product Details

The Gibson 65558 Cat-Back Dual Split Exhaust System delivers the aggressive throaty exhaust tone and dual exhaust look that performance truck enthusiasts demand. Engineered to reduce backpressure, this bolt-on cat-back system unlocks more low-end torque and horsepower, with typical gains averaging 15–20 horsepower. Dual stainless tips exit straight out the back, and the split-rear design retains compatibility with most factory bumpers, roll pans, and trailer hitches.

SuperFlow Muffler Technology:

  • Baffled and chambered all-welded muffler design for improved volumetric efficiency
  • No internal packing — consistent flow and sound throughout the life of the muffler
  • Minimal interior drone with an aggressive, performance exhaust tone
  • Muffler dimensions: 8 in. round; 3.00 in. dual inlet; 2.50 in. dual outlet; 24 in. length

Tubing & Tips:

  • 2.50 in. stainless mandrel-bent tubing for smooth, unrestricted exhaust flow
  • 3.50 in. polished T304 stainless steel round slash-cut tips — clamp-on design
  • Tip specifications: 2.50 in. inlet; 3.50 in. outlet; 12 in. length

Installation & Warranty:

  • Hassle-free bolt-on installation — no welding required
  • Includes all necessary zinc-plated factory-style hangers and clamps
  • Note: Will not fit with a 5th wheel hitch; exhaust sound may be louder under towing conditions
  • Proudly made in the USA
  • Backed by a Lifetime Limited Warranty covering defects in materials, workmanship, and rust-through

Products specifications

Fits

2001-2007 Chevrolet Silverado 2500 HD; 2001-2007 Chevrolet Silverado 3500; 2002-2007 GMC Sierra 2500 HD; 2001-2007 GMC Sierra 3500

Tubing Diameter

2.50-in. Stainless mandrel bent tubing.

Muffler Dimension

8 in. Round; 3.00 in. Dual Inlet; 2.50 in. Dual Outlet; L-24 in

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

Tip Specifications

Inlet 2.50in.; Outlet 3.50in.; L-12in.

Prop 65

Yes

Tip Description

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

Outlet

Dual

Category

Truck and SUV

Muffler Body Length

24.000 in.

Inlet Inside Diameter

3.000 in.

Exit Position

Straight Out Back

Tubing Diameter

2.500 in.

Exhaust Type

Cat-Back

Material

Stainless Steel

Tail Pipe Diameter

2.500 in.

Tip Diameter

3.500 in.

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

Good price.

The best prices and fast shipping!

Absolutely the best bargain you'll find! Don't pay retail mark up at the parts store, buy at Autoplicity and know you're saving money.<br>.

great service, even better price! Would recommend Autoplicity to anyone.

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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