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Gibson Exhaust 5518 Cat-Back Super Truck Dual Exhaust System Aluminized Steel

(1999-2007 Chevrolet Silverado 1500; 1999-2000 Chevrolet Silverado 2500; 2007 Chevrolet Silverado 1500 Classic; 1999-2007 GMC Sierra 1500 + 2 more models)

Part of: Gibson Performance Exhaust Super Truck Cat-Back Exhaust System

Other options in this family: Gibson Exhaust 9532 Gibson Exhaust 69517 Gibson Exhaust 65518 Gibson Exhaust 66513 Gibson Exhaust 9516

Manufacturer

Picture for manufacturer Gibson Exhaust

Part Number

5518
9 reviews
Sale Price

$583.38

Estimated ship date Wednesday, November 18

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Product Details

The Gibson Performance 5518 Super Truck Cat-Back Exhaust System delivers an aggressive, deep race-rumble tone through dual tailpipes that exit in front of the rear tires — giving your truck the look and sound of a purpose-built performance machine. Constructed from durable aluminized steel, this cat-back system is engineered to reduce backpressure and unlock measurable gains in power and torque.

Gibson's dyno-tested design yields average horsepower gains of 10–15 hp and torque increases of 15–20 lb-ft over stock. All hardware and factory-style hangers are included for a straightforward, no-weld, bolt-on installation. Proudly made in the USA and backed by a Lifetime Limited Warranty.

Note: Not recommended for heavy-duty towing. Noise level may exceed the 95-decibel standard.

Muffler Specifications:

  • Design: Baffled and chambered — no internal packing
  • Sound Character: Aggressive with minimal interior drone
  • Body: 7 in. round
  • Inlet: 3.00 in. center
  • Outlets: 2.50 in. dual
  • Muffler Length: 19 in.

Tubing:

  • Diameter: 2.50 in. mandrel-bent aluminized steel

Exhaust Tip Specifications:

  • Style: 6 in. polished T304 stainless steel, oblong, slash-cut — clamp-on
  • Outlet: 6 x 2.75 in.
  • Tip Length: 6 in.
  • Exit Position: In front of rear tire

What's Included:

  • Cat-back exhaust system with all hardware
  • Factory-style hangers
  • Polished stainless slash-cut exhaust tips

Products specifications

Fits

1999-2007 Chevrolet Silverado 1500; 1999-2000 Chevrolet Silverado 2500; 2007 Chevrolet Silverado 1500 Classic; 1999-2007 GMC Sierra 1500; 1999-2000 GMC Sierra 2500; 2007 GMC Sierra 1500 Classic

Tubing Diameter

2.50-in. Aluminized mandrel bent tubing.

Muffler Dimension

7 in. Round Body; 3.00 in. Center Inlet; 2.50 in. Dual Outlets; L-19 in.

Muffler Description

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

Material

Aluminized

Prop 65

Yes

Tip Description

6in. Polished T304 Stainless Oblong Slash-Cut Tip. Clamp on.

Tip Specifications

Outlet 6 x 2.75 in.; L-6 in.

Outlet

Dual

Exit Position

Exits In Front of Rear Tire.

Category

Truck and SUV

Tubing Diameter

2.500 in.

Tip Diameter

6.000 in.

Tail Pipe Diameter

2.500 in.

Exit Style

Straight

Muffler Type

Chambered

Inlet Inside Diameter

3.000 in.

Muffler Body Length

19.000 in.

Exhaust Type

Dual

Outlet Outside Diameter

2.500 in.

Tip Logo

None

Exit Position

Front of Rear Tire

System Type

Cat Back

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No issues with fast shipping

Everything arrived quickly and in perfect condition.

Perfect!

I ordered a set of inner tie rods for my car from Autoplicity and found their prices to be the lowest online for the brand I was looking for. Items were ship out in 2 business days from the original manufacturer. Shipping prices were kind of on the expensive end considering the package size and weight so if Autoplicity adjust their shipping prices to be more competitive, I think their service and pricing would be hard to beat!

Wow talk about FAST shipping...I placed the order...and the door bell rang for delivery!!! The electronic points and coil when in the FJ 4o in just a few minutes and work perfectly...THANKS so much! Larry in Montana

Great pricing and quick shipping. I'll be using them again for sure.

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